So I've got an 88 TII with an s5t2 swap. My turbo burns oil, has been for a month or so. However, is there any way possible for coolant to mix with my oil inside the turbocharger?!?! After my routine weekly oil check, I discovered coolant in my oil! My engine does not smoke, only oil after building boost. There's no oil in my coolant. My spark plugs are dry, no coolant on them. And Compression test was perfect. Every morning I go outside to start my car, she always fires up, the only smoke that comes out of my exhaust is moisture, no coolant smoke of any kind. I'm Going to replace my turbo hopefully this weekend anyways, But I need to know if there is any possible way that this could happen. I'm extremely confused atm

 

What makes you so sure that you have coolant in your oil?

 

its there, i had milky **** on my dipstick. I drained the oil out, it was there, not much at all to my surprise, but there is coolant in the oil.

 

Cracked center section

 

Could it just be the cold weather? Up here in MN if you take a short trip this time of year even in BRAND NEW car and pull the dipstick or look on the back of the oil fill cap there is white foam after it cools down.

Just sayin, could be nothin

 

^
yep

in cold weather, thats just water condensation formed with oil particles.

 

Very good points, gear and greg. It has been extremely cold. And I am replacing the center section on my turbocharger hooefully rhis weekend. I rebuilt it with a gpopshop kit, and discovered the piston ring that seals on the end of the turbine shaft, the journal for that was worn out.