Oil in Coolant Reservoir? 6 Causes & How To Fix It

[@Viatko1079]

Perfect thank u so much saved my car and 1700 dollars just watching ur video i reaearched my oil coolant mixing issue and thought for sure it was a head gasket . After research and contacted 3 diff mechanics i figured out who was honest and told me it was minor oil cooler issue . Please get second opinion on any major issue w ur car u be amazed how much stress and money u can save .

[@MikeKollin]

My former mechanic who totally messed with my car. Told me 'I had a completely blown head gasket because there was oil in the coolant resovoir... and that I need to replace the engine immediately that week." i later caught him lowering my tired pressure down to 18 pounds each tire. I just set it the night before to 32 pounds each. I also caught him under my hood when I didnt' ask him to work on my car and found my valve cover bolts were all loosened. He put fresh oil in the air intake next to the air filter, loosened the bolts to my oil pan and a few other things I fixed. #1 I just had the entire car inspected at an inspection center. So the week before I checked the bolts on everything to make sure everything was snug etc... oh he also loosened "ALL" the bolts on the fender to which I also checked the week before and they were all tight... not to mention I just got my car back from a fender bender to which they had to replace fenders, bumper etc. so I know the bolts were tight... #2 Here's the deal, the car ran great. I mean before he messed with it and also after I cleaned it all up, he put oil in the throttle body and MAF Sensor.. So once I cleaned all this up, tighten up the valve cover, oh to which I just replaced the month before, I mean the gasket, I set tire pressure correctly tighten up oil pan bolts etc. etc... it ran like a champion again... #3 I took it to another mechanic who checked my car out for any signs of a blown gasket and said, "Other than someone pouring oil into your overflow container, there's nothing wrong with your car." He drove it also and said it has full power, which it still does 3 years later.. I've cleaned out the resovoir yet oil still comes back. I am wondering if maybe he poured it into the radiator as well... cuz it still runs strong. #4 I had the engine rebuilt 5 years before he touched it.... P.s. it has never over heated. WE put on the colder thermostat so it never even hits the 1/2 way mark. #5 I have no brown sludge in the radiator at all. It's green fluid like it came. No crank case milkshake either.... no blue smoke or any abnormal smoke out the back either...

[@MechanicalBoost]

Good Job

[@HenryTimbie]

Step helpful. Thanks

[@orhinangami5313]

Is there a chance of oil and coolant mix up when mechanic mistakenly interchange oil and coolant pipes when repairing?

[@MechanicalBoost]

Yeah there are high chances for the oil and coolant mixing if your mechanic mistakenly interchange oil and coolant pipes. If the oil and coolant pipes are swapped, oil can enter the cooling system and coolant can enter the oil system. This can also cause contamination of both systems.

[@orhinangami5313]

@@MechanicalBoost , Thank you so much, I faced this situation.

[@orhinangami5313]

Sir please guide me here too. What is the purpose of turbo in engine? Is it normal that engine oil comes to turbo?

[@MechanicalBoost]

@@orhinangami5313 A turbo compresses the air that enters the engine. This allows more air (and fuel) to be combusted in the cylinders, generating more power than the engine would produce naturally. Yes, it's normal for engine oil to flow to the turbo. The turbo is a high-speed, high-temperature component, and it relies on engine oil for two key reasons: 1) Lubrication: The turbocharger's turbine shaft spins at extremely high speeds, so it needs lubrication to reduce friction between the moving parts, especially the bearings. Engine oil provides this lubrication. 2) Cooling: Turbochargers generate a lot of heat due to the exhaust gases they use to spin the turbine. Oil helps absorb some of this heat and carries it away, assisting in cooling the turbo and preventing overheating. However, oil should stay where it's needed and not leak into other parts of the system.

[@orhinangami5313]

@@MechanicalBoost , Thanks a lot Sir