Oil in Coolant Reservoir A Warning Sign You Shouldn't Ignore

The car runs and idles great, their are no leaks in antifreeze or oil (on the ground), no overheating problems, and starts up fine everytime. Oil filter housing gasket is common failure point and can cause this - coolant runs through there. You should also change your oil when you do the gasket as ... If oil is leaking into your coolant, the coolant will be overflowing because oil is adding to the coolant. Therfore, your oil should be consumed. They put a special cap on your cooling system and pressurize it, then monitor it for a period of time. if the pressure drops you have a leak somewhere. Hello I have 2012 ram bighorn 5.7 hemi. Recently I have oil in coolant and in reservoir and radiator. I don't know what happened oil was ... Wouldn't oil in the coolant circuit tend to lay low (as in more dense) instead of showing 'up' in the overflow tank ? Either way, this would ... The oil always ends up in the overflow. It floats on the coolant, so it's the first to get pushed out into the expansion tank when the motor warms up. I was on a trip, over 300 miles from home, when my 2014 Passat TDI started spewing black engine oil out of the coolant overflow tube. It's your oil cooler. I promise. Drain and change NOW before you build too much sludge throughout cooling system and heater core. It's going to ... 3G TL Problems & Fixes - Oil in coolant reservoir and radiator - This is for my uncle's TL-S. It's a 2007 Automatic.