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E60 oil in coolant?
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E60 oil in coolant?
When replacing your oil cooler, work with the engine cold and disconnect the battery negative cable. A BMW oil cooler works just like a radiator for your engine oil, circulating the oil through channels in the oil cooler core to allow heat to dissipate into the atmosphere, moving cooled oil back to your high-revving BMW engine to lubricate and absorb more heat Engine Oil Cooler Pipe, Flow - E60/E61 535i & 535xi - 17227560979 On some engines, oil cooler failure or oil cooler gasket failure will cause oil and coolant to mix E36 (1991 - 1999) E60 / E61 (2004 - 2010) Top Contributors this Month View All. SKÅNES FAGERHULT, Sweden, June. Belt-driven coolant pump bolted to the front of the engine block. mattmar1 218 Replies. Jun 16, 2015 · It sounds like you've got oil in the coolant system. Over time, the rubber cooling hoses in your engine's cooling system become brittle and can burst or crack, resulting in a coolant leak. Thanks for watching ‼️. 2) Press the accelerator pedal to the floor for ~10 seconds or so. For this reason, coolant is as important to a vehicle’s performance as engine. Radiators are also used to cool transmission, engine oil and power steering fluids on many modern automobiles and on some vintage cars (in terms of engine oil). Doug Huffman 222 Replies. After flushing the coolant system and letting a few weeks go by, i'll get a coolant notification again. If you are sure the head gasket is OK, The next most likely culprit would be the oil cooler on the n/s of the engine, which co-incidentally is right next to the expansion tank, so maybe that is the cause. I noticed trees of oil in my coolant reservoir tank and immediately changed the oil cooler with a new one & flushed it like 3 times Oil in the water sounds very much like a cracked head aussiejosh, Jul 6, 2017. Oil can leak into the coolant without any coolant leaks inside the engine, due to the oil pressure being a lot higher than the coolant pressure. 7K subscribers Subscribed 299 29K views 4 years ago We demonstrated how to replace the coolant temperature sensor and where the coolant temp sensor is located on N52 engine but it will be the same for N53, and N54 engine as well. If replacing valve cover, you have to replace the bolts, the motor gasket, and the eccentric sensor gasket at the same time. BMW coolant expansion tank replacement | 2004-2010 5 series and 6 series | Replace your old expansion tank now before it fails and leaves you stranded! BMWPartsDeal. Source: E60 with N52 had a leak coming out between the oil filter and heat exchanger, replaced asap with no prep and the job was done in 30 minutes. One common cause of oil in coolant is the failure of engine components. Jun 16, 2015 · It sounds like you've got oil in the coolant system. It can be confirmed with a simple chemical test for CO2 in the coolant. 6) Vent the coolant - bleeds the air out of the system using the water pump. If you are sure the head gasket is OK, The next most likely culprit would be the oil cooler on the n/s of the engine, which co-incidentally is right next to the expansion tank, so maybe that is the cause. Its attached to the oil filter body. Oil Shale Extraction - Oil shale extraction is more complicated than crude oil extraction; it includes the extra steps of retorting and refining. 2002 Chevrolet 2500HD 4x4 LB7 Crew Cab Short Bed, 325k miles and still running strong, 5in exhaust, efi, gauges. shawnsheridan 407 Replies. (new thermostat and bleeding is done) Detroit series 60 oil in coolant. Last week I received a low coolant warning. It is a buttery frothy sort of a mix on top of the coolant. Does the market have the right type of oil? It appears it may not, as supplies of heavy oil are becoming short even as there is an excess of light sweet oil. Its attached to the oil filter body. This is BMW parts item 13621433076, described as Water or Oil Temperature Sensor for most 2000-later BMWs, that you can buy at the best price with fast shipping. AutoZone does not offer oil change services a. When replacing your oil cooler, work with the engine cold and disconnect the battery negative cable. Coolant hose from oil cooler to water pump and radiator for early type N52 radiator. N52 are not known for blown head gaskets unless they are utterly abused by their prior owners. Over the past 3 months, 5 analysts have published their opinion on Magnolia Oil & Gas (NYSE:MGY) stock. 2004 525i E60 M54B25 with ZF AT 6HP19Z pcy. I would check the flanges of the cooler lines that go into the radiator. Therfore, your oil should be consumed. This can include issues with gaskets, seals, or even the oil cooler. Here's a video to give you an idea of what might be going on: Aug 16, 2015 · Odd you are just seeing oil in the expansion tank, and not anywhere else. Read up on this forum and you'll find oil leaks are common from oil filter housing (OFH) gaskets. Sometimes you'll get a white gooey residue built up on the rad cap or oil cap indicating the mixture. I checked for combustion gas with a dye tester and it was positive. So how much is in the reserve and how long can it last? Advertisement When Americans talk of "o. Disconnecting the negative battery cable will prevent the electric cooling fan from starting while being serviced. This article gives detailed instructions on replacing the oil filter housing gasket and oil cooler gasket in a BMW N52 six cylinder engine. Doug Huffman 230 Replies. It's relatively easy to do so in a few simple steps Does AutoZone do oil changes? We have the details on AutoZone's oil change policy, plus whether similar auto stores offer the service. BTW, if you do a compression test, remove all the plugs at the same time. I will be frequently violating 1 & 4 in the near future Many kinds of driving conditions qualify your vehicle for Severe Service oil change intervals, and Mobil 1 is ideal for this service. So how much is in the reserve and how long can it last? Advertisement When Americans talk of "o. This tech article shows you how to replace the radiator grills (kidney grills) in your front bumper. iTrader: ( 1) Help: Oil in Coolant / Overheating Issue. shawnsheridan 410 Replies. Description This part is listed by BMW as BMW part number 17227560980 (17 22 7 560 980) and is described as engine oil cooler return pipe for E60 535i. Can you tell if the smoke is truly white, or maybe grey or blue? Grey/blue is more likely oil burning. Be sure to work with a cool engine and confirm the cooling system lacks pressure before opening the cooling system. Does the market have the right type of oil? It appears it may not, as supplies of heavy oil are becoming short even as there is an excess of light sweet oil. Valve Stem Seal Failure. High pressure compressed gases from the cylinder are being forced into the cooling system. it is possible two ways. N52 and N54 engines: Electric coolant pump bolted to the right front of the engine block. Sep 1, 2020 · BMW E60 coolant flush | 2004-2010 5 series| N52 6 cylinder | Flush and clean your coolant system, step by step instructions Apr 24, 2009 · It's possible that a breach has developed that allows oil under pressure to be pumped into the cooling system: there is about a 40 psi difference between the two systems. Finally a reputable/reliable mechanic also was confident there was oil in my coolant He says I'm going to need to replace the oil housing gasket. Time needed: 3 minutes. When replacing your oil cooler, work with the engine cold and disconnect the battery negative cable. VWVortex Volkswagen Forum 2M+ members This part is listed by BMW as BMW part number 17137542986 (17-13-7-542-986) and is described as Coolant Overflow Reservior E60/E61 5 Series (2004-2010) and E63/E64 6 Series (2004-2010). (KY3)—If you buy, sell, or trade cars on Craigslist or Facebook Marketplace, you need to be aware of this scam. Car A Rac presents recommended by manufacturers types for all popular vehicles Oil Cooler; Radiator; Home / Coolant / BMW / 5-Series. This is BMW parts item 13621433076, described as Water or Oil Temperature Sensor for most 2000-later BMWs, that you can buy at the best price with fast shipping. Source: E60 with N52 had a leak coming out between the oil filter and heat exchanger, replaced asap with no prep and the job was done in 30 minutes. This is one of the sensors in the Monte Carlo that you. Engine overheats in heavy traffic. 08-29-2013, 02:30 PM. Engine7 VVT/Etorque. Read up on this forum and you'll find oil leaks are common from oil filter housing (OFH) gaskets. Secondary Air System Failure. The head gasket seals both coolant and lube oil galleries in the head/block interface. 4 ft-lb) N52 Engine: e60 coolant leak Jump to Latest 24K views 9 replies 7 participants last post by Damon54 Aug 9, 2011 N n200mb Discussion starter 2 posts · Joined 2009 #1 · Oct 5, 2009 BMW E60 E61 HOW TO DRAIN COOLANT ANTIFREEZE COOLING SYSTEM 520i 523i 525i 528i 530i 535i 540i 550i 520d 525d 530d 535d Check Out Our Website: http://mechanic. A coolant temperature sensor is a vital part of an automobile engine's cooling system. Remember to do this when the engine is cold- because you're working with coolant, and it means both fluids won't be sitting up in that part of the engine in bulk. BTW, if you do a compression test, remove all the plugs at the same time. Compression pressure is 12-14 bar, or 176-206 psi. costco gold hoop earrings Steam coming from underneath the hood is a sign of overheating and proves that the cooling system is unable to do its required function. iTrader: ( 0) oil in coolant n52 madness. If you are sure the head gasket is OK, The next most likely culprit would be the oil cooler on the n/s of the engine, which co-incidentally is right next to the expansion tank, so maybe that is the cause. Advertisement The next time you dri. Do you know how to get oil out of clothes? Find out how to get oil out of clothes in this article from HowStuffWorks. Remember to do this when the engine is cold- because you're working with coolant, and it means both fluids won't be sitting up in that part of the engine in bulk. Pentosin is somewhat hard to find. the oil cooler has oil on it from driving it after changing it. (SOLD)two 2003 Cummins/ autos. It is for the N54 engine. :withStu: Took ten or so flushes over a period of a week and replacing the coolant reservoir to get it to acceptable levels. The following article gives step-by-step instructions on draining, refilling, and bleeding the coolant system in all BMWs with the N52 six-cylinder engine. Extra Info: Purchased an 05 century with a detroit 60, with 400,000 on it. crossword solver free I have a 2014 rwd 335i msport (83k miles) that's been mixing oil into the cooling system I took a brake bleeder to the expansion tank and pulled out over a quart. Sep 1, 2020 · BMW E60 coolant flush | 2004-2010 5 series| N52 6 cylinder | Flush and clean your coolant system, step by step instructions Apr 24, 2009 · It's possible that a breach has developed that allows oil under pressure to be pumped into the cooling system: there is about a 40 psi difference between the two systems. If you are sure the head gasket is OK, The next most likely culprit would be the oil cooler on the n/s of the engine, which co-incidentally is right next to the expansion tank, so maybe that is the cause. it is possible two ways. After flushing the coolant system and letting a few weeks go by, i'll get a coolant notification again. Does the market have the right type of oil? It appears it may not, as supplies of heavy oil are becoming short even as there is an excess of light sweet oil. If you are sure the head gasket is OK, The next most likely culprit would be the oil cooler on the n/s of the engine, which co-incidentally is right next to the expansion tank, so maybe that is the cause. HOW TO TEST COOLANT TEMPERATURE SENSOR ON BMW E60 E61 E39If you have BMW 5 series e60 e61, and you need to test your BMW coolant temperature sensor because y. The engine, hoses, radiator, and expansion tank are filled with coolant mixture. Learn about the different steps in the oil extraction process How does oil recycling work? Keep reading to learn how to recycle oil and discover the environmental impacts of oil drilling. Draining the radiator in a Honda Accord is a straightforward process. I immediately went home and lifted the hood and opened the coolant cap. waseem daker 2023 it is possible two ways. the other thing to check is to see if coolant is in engine oil by taking out dipstick and have one of two drops of engine oil on a hot exhaust. I immediately went home and lifted the hood and opened the coolant cap. Well if theres no coolant in the oil then maybe your oil cooler lines somehow leaked into the radiator and got into the coolant. Oil can leak into the coolant without any coolant leaks inside the engine, due to the oil pressure being a lot higher than the coolant pressure. When replacing your oil cooler, work with the engine cold and disconnect the battery negative cable. shawnsheridan 408 Replies. Yea so coolant level dropped a little car is cold and fan kicks right on blowing fast When you go to change your coolant and realize you have oil in the coolant, most people start to panic and wonder if their car is going to break down soon. Other components of the cooling system consist of: M54 and 8-cylinder engines: Belt driven coolant pump bolted to the front of the engine block. Jun 16, 2015 · It sounds like you've got oil in the coolant system. Open the oil fill with engine stopped and see how your oil looks with a flashlight. Replace old and tired coolant hoses with OEM cooling hoses or quality aftermarket options to save some money. If you've got oil in your radiator you need more than just a garden hose to clean your cooling system. A car seller near Ozark told On Your Side he got ripped off and. Removing the intake manifold will also give you easy access to the engine starter, knock sensors or coolant pipes and hoses. what does the smoke smell like? EDIT: I re-read your post, and you did say it smells distinctly like oil burning.
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If replacing valve cover, you have to replace the bolts, the motor gasket, and the eccentric sensor gasket at the same time. Sep 1, 2020 · BMW E60 coolant flush | 2004-2010 5 series| N52 6 cylinder | Flush and clean your coolant system, step by step instructions I'm seeking some help and advice from other members and properly diagnose oil found in coolant. Jun 16, 2015 · It sounds like you've got oil in the coolant system. If you are sure the head gasket is OK, The next most likely culprit would be the oil cooler on the n/s of the engine, which co-incidentally is right next to the expansion tank, so maybe that is the cause. There is excessive contamination present in the radiator and expansion tank. When replacing your oil cooler, work with the engine cold and disconnect the battery negative cable. _____ 2010 BMW 550i MT 2003 BMW 325i @216k and counting. Massive oil leak and I noticed oil in coolant. Crank up the pressure 20lbs and then hand rotate the engine over a few cycles after giving it 30s after applying pressure. Dec 28, 2022 · This article will show you how to replace the oil cooler lines and associated sealing O-rings. Many car owners may not realize the importance of using the co. What does it mean if you find oil in your coolant? What are the common causes and how can you fix it? These questions answered and more. kiro 97.3 live bmw e60 expansion tank. Compression pressure is 12-14 bar, or 176-206 psi. Flushing engine multiple times and also hoses, coolant reservoir, water pump, thermostat and then flushin the gearbox multiple times with low quality oil. well only a few steps but repeated many times. 07129952109 Hose clamp. Changing the Oil and Filter in Your E60 BMW 5-Series Jump to Photos 12 Comments Applicable Models: BMW 530i Sedan (2004-07) Project Time: 1 hour Tab: $60 Talent Tools: Jack, jack stands, 8mm, 15mm socket small screwdriver, large wrench, drain pan Parts Required: Oil and filter Performance Gain: Longer engine life 2009 BMW 535i N54 E60 coolant leak on Turbo lines repair Maic Salazar Diagnostics 44. The head gasket seals both coolant and lube oil galleries in the head/block interface. Location: Magnolia, TX. E81 / E82 / E87 / E88Model Year: 2004 - 2011 G42Model Year: 2021 + N52 Coolant Flow Diagram. I initially had both oil cooler and OFH gaskets replaced because they were basically dry to the bone. E60Model Year: 2004 - 2009 G29Model Year: 2019+ Previous Generations; E89Model Year: 2009 - 2017. Nov 8, 2019 · Most likely a failed head gasket. com offers genuine Cooling System Coolant Hoses for 2008 BMW 528i Sedan(E60) with great price and fast delivery 11537522999 Hose, heat exchanger engine oil. There are also oil leaks present from. Jun 16, 2015 · It sounds like you've got oil in the coolant system. The head gasket seals both coolant and lube oil galleries in the head/block interface. Of course, this is far from an exhaust list of the problems that may occur on the BMW N62 engine. Because the thermostat never opens and omly run thru the block. waifumiia mega This tech article shows you how to replace the radiator grills (kidney grills) in your front bumper. The head is one such spot that both oil and coolant flow through the gasket back and forth between. However, the cylinder head appears not to be the problem. Well, the bottle I used contained some oil/sealant. Coolant should be in the cooling system, and engine oil should be in the engine. Advertisement There are a couple. Radiator, Behr - Late E60 525i/528i/530i (no heat exchanger), E60 550i, E63 650i, E65 750i 06-08. Our guide covers the process, benefits and what to expect Expert Advice On Impro. It's relatively easy to do so in a few simple steps Does AutoZone do oil changes? We have the details on AutoZone's oil change policy, plus whether similar auto stores offer the service. I was convinced the oil cooler leaking oil on the upper radiator hose compromised the 'O' ring over time and it was going to leak. Drain oil first before removing dip stick. Yep. , and a cap where the coolant comes out # 11021AA170. 07129952109 Hose clamp. What are the things that every driver should know about engine oil? Check out 5 things every driver should know about engine oil at HowStuffWorks. What is it? When I break the system open, is there any other areas to check? In this video I drain the engine oil and coolant while also removing most of the coolant / intercooler hoses and all of the undertrays on the bottom of the c. kaiju deviantart In regards to how do you actually flush it, just follow a guide for bleeding the system for air. Oil/coolant mixing can happen when the oil filter housing gasket fails. The tranny oil cooler got cracked inside most probably and mixed ATF with engine coolant. it is possible two ways. BTW, if you do a compression test, remove all the plugs at the same time. Disconnecting the negative battery cable will prevent the electric cooling fan from starting while being serviced. 2) Move the steering fluid cooling hoses out of the way. SKÅNES FAGERHULT, Sweden, June 16, 2021 /PRNewswire/ -- Concentric AB announces a long-term agreement with an existing e-pump customer, a global t. The head gasket seals both coolant and lube oil galleries in the head/block interface. BMW Fitments: Location: murrieta. Advertisement There are a couple. Coolant in Oil - Solved4L, 2014 with about 85k miles on it and noticed a significant amount of coolant loss. If you are sure the head gasket is OK, The next most likely culprit would be the oil cooler on the n/s of the engine, which co-incidentally is right next to the expansion tank, so maybe that is the cause. Compression pressure is 12-14 bar, or 176-206 psi. That could be the problem. The head gasket seals both coolant and lube oil galleries in the head/block interface. A coolant temperature sensor is a vital part of an automobile engine's cooling system. If you are sure the head gasket is OK, The next most likely culprit would be the oil cooler on the n/s of the engine, which co-incidentally is right next to the expansion tank, so maybe that is the cause. The engine tested 230 psi across all 6 cylinders with less than 10% loss, runs flawlessly, and the.
Right now I'm told it's a bad oil cooler along with a cylinder head. When replacing your oil cooler, work with the engine cold and disconnect the battery negative cable. 6 Pentastar with engine oil in the cooling system. Here's a video to give you an idea of what might be going on: Aug 16, 2015 · Odd you are just seeing oil in the expansion tank, and not anywhere else. cmf business supplies Here's a video to give you an idea of what might be going on: Aug 16, 2015 · Odd you are just seeing oil in the expansion tank, and not anywhere else. When replacing your oil cooler, work with the engine cold and disconnect the battery negative cable. Dec 28, 2022 · This article will show you how to replace the oil cooler lines and associated sealing O-rings. This milky appearance is caused by the emulsion of oil and coolant, forming a mixture that looks like a milkshake. As you mentioned, the thermostat might be stuck closed. It is a buttery frothy sort of a mix on top of the coolant. Replaces BMW part #17217559962. why cant i purchase playstation plus My concern is that i need to replace the head gasket. Other components of the cooling system consist of: M54 and 8-cylinder engines: Belt driven coolant pump bolted to the front of the engine block. It has the lubricity and "guts" necessary for heavy-duty machining center work and still provide the wetting and cooling necessary for high-speed turning and grinding operations. BTW, if you do a compression test, remove all the plugs at the same time. If it's brownish or even colorless, you should schedule a service appointment. Please consider creating a new thread. Coolant hose from oil cooler to water pump and radiator for early type N52 radiator. my husband refused to touch me on our wedding night and blamed it all on me After all, a coolant system blowout will leave you stranded and may possibly destroy your engine. Sep 1, 2020 · BMW E60 coolant flush | 2004-2010 5 series| N52 6 cylinder | Flush and clean your coolant system, step by step instructions Apr 24, 2009 · It's possible that a breach has developed that allows oil under pressure to be pumped into the cooling system: there is about a 40 psi difference between the two systems. Begin by replacing the O-rings on the oil and coolant lines. A BMW oil cooler works just like a radiator for your engine oil, circulating the oil through channels in the oil cooler core to allow heat to dissipate into the atmosphere, moving cooled oil back to your high-revving BMW engine to lubricate and absorb more heat Engine Oil Cooler Pipe, Flow - E60/E61 535i & 535xi - 17227560979 On some engines, oil cooler failure or oil cooler gasket failure will cause oil and coolant to mix E36 (1991 - 1999) E60 / E61 (2004 - 2010) Top Contributors this Month View All.
8 posts · Joined 2010 Tell your mechanic to pop the oil cooler off and pressure check it. Oil can leak into the coolant without any coolant leaks inside the engine, due to the oil pressure being a lot higher than the coolant pressure. You can send of the coolant for testing too. In the spec sheets it tells everything needed to maintain oil changes, spark plug gaps, carburetor rebuilds and impeller wear ring tolerances. So if the system capacity is 12L, then pour in about 6L of pure coolant, the rest is distilled water. Here are some maintenance tips and tricks I've learned about the N52 engine while owning my E90 BMW 3 Series. looked like the head had been removed. The price of heating oil in the United States reached another record high this week. Drain oil first before removing dip stick. Yep. Does anyone have any idea where the oil leak could come from? Oil Pressure on a good engine is 28PSI to 55PSI. we ran it for 200,000, then oil in the coolant. I checked the engine oil and its normal colored, so no coolant in engine oil. Oil looks clean, the oil in the coolant seems more than just some residual from seepage or machine work residue. Engine coolant flow diagram plays a crucial role in maintaining the optimal operating temperature of an engine. OEM replacement for BMW part #17117519209 It's a simple thing to do and you can rent the pressure gauge from autozone or other parts stores. Head gasket is most likely place for a little oil to seep in but it could be coming from other places. What does it mean if you find oil in your coolant? What are the common causes and how can you fix it? These questions answered and more. Then I thought there must be other leakage elsewhere E36 (1991 - 1999) E60 / E61 (2004 - 2010) Top Contributors this Month View All. Dec 28, 2022 · This article will show you how to replace the oil cooler lines and associated sealing O-rings. BMW coolant expansion tank replacement | 2004-2010 5 series and 6 series | Replace your old expansion tank now before it fails and leaves you stranded! BMWPartsDeal. uncaged male enhancement Or Call: 501-214-1091. 501 West 8th Street. Soon as I did, pretty much all the coolant spilled out on the ground. SKÅNES FAGERHULT, Sweden, June 16, 2021 /PRNewswire/ -- Concentric AB announces a long-term agreement with an existing e-pump customer, a global t. Thanks for watching ‼️. Every 120,000 - 150,000. 2) Move the steering fluid cooling hoses out of the way. When it comes to maintaining your vehicle, one crucial aspect that often gets overlooked is the type of coolant used. SKÅNES FAGERHULT, Sweden, June 16, 2021 /PRNewswire/ -- Concentric AB announces a long-term agreement with an existing e-pump customer, a global t. Compression pressure is 12-14 bar, or 176-206 psi. Finally a reputable/reliable mechanic also was confident there was oil in my coolant He says I'm going to need to replace the oil housing gasket. Other components of the cooling system consist of: M54 and 8-cylinder engines: Belt driven coolant pump bolted to the front of the engine block. As the leak progresses you may also see coolant being drawn into a cylinder. Without a properly operating cooling system, the engine will run hot which will cause the eng. Car A Rac presents recommended by manufacturers types for all popular vehicles Oil Cooler; Radiator; Home / Coolant / BMW / 5-Series. I immediately went home and lifted the hood and opened the coolant cap. -Make sure to follow specific process of how to bleed and fill system. 2001 E38. Oil/coolant mixing can happen when the oil filter housing gasket fails. Manual transmission cars do not have a transmission cooler and lines, just the upper power steering line cooler. agbo idoti inu eje run it till its warm and. 4L banjo bolts, blue spring, coolant filter, IDP tunes, SCT Livewire (regrettably sold) 08 Jayco 31 BHDS G2. Drain oil first before removing dip stick. Yep. If you find oil in the coolant reservoir, you know there is a severe problem. I have a 2014 rwd 335i msport (83k miles) that's been mixing oil into the cooling system I took a brake bleeder to the expansion tank and pulled out over a quart. If you are sure the head gasket is OK, The next most likely culprit would be the oil cooler on the n/s of the engine, which co-incidentally is right next to the expansion tank, so maybe that is the cause. Valve Cover & Valve Cover Gasket Oil Leaks. Under normal (street) driving conditions and in cool or temperate regions, engine oil temperature is maintained at about 250 degrees F (122 degrees C). Source: E60 with N52 had a leak coming out between the oil filter and heat exchanger, replaced asap with no prep and the job was done in 30 minutes. The Subaru FB engine does NOT have a history of head gasket problems the FB25 engine was redesigned so that NO COOLANT flows through the head gasket, so a breach of the gasket would involve combustion gases and perhaps oil, with neither of them getting into the coolant. SKÅNES FAGERHULT, Sweden, June. I posted this earlier and i'll repost it here for you. Over time, the rubber cooling hoses in your engine's cooling system become brittle and can burst or crack, resulting in a coolant leak. Oil can leak into the coolant without any coolant leaks inside the engine, due to the oil pressure being a lot higher than the coolant pressure. Radiators have multiple passages of metal hoses that the coolant travels through to lower the fluid's temperature. No point opening drain plugs if find the fill plugs are not going to budge. A cracked cylinder head can also cause motor oil to mix with your coolant because it allows air to leak into the combustion chamber through its cracks. maybe it is a mixture of oil and coolant burning Also, how is the engine performance/power? mjchecko Like S sannouni Discussion. - At very minimum, need to replace upper and lower radiator hoses Every two years. Pulled the oil filter, looks normal. Oil can leak into the coolant without any coolant leaks inside the engine, due to the oil pressure being a lot higher than the coolant pressure.