[Thomas2015Turbo]

I am wondering if anyone has had this issue before? I am going to pressure test the coolant system, do a compression/leakdown test, ect. at work on Monday either way to find the issues exact point. Complete speculation but I'm guessing either its going to be turbo seals or head gasket but we shall see.

I went to fill my windshield washer solvent today so while I was in there I was just doing a quick check of everything. I noticed there is a layer of oil on top of the coolant in the reservoir and in the coolant rad/line cap. When I removed the oil fill cap it looks fine inside like its not mixing up there. My car runs great, no codes on the ecu or low coolant/oil. Every 3 or so oil changes since I bought the car new I have had to top off the coolant (never dropped below "low"on the tank) but this is the first time I've noticed the oil, might have just not noticed it before tho.

Owned 0 - 28000 miles

Thanks
-Thomas Brennan

 

[Thomas2015Turbo]

Quick update

I never had this issue on any other car but after doing some research it turns out that the oil looking substance is actually a reaction that happens between our factory coolant and Redline Water Wetter. It can actually cause the water pump bearings to fail early and clog up the radiator, lucky for me everything seems okay, I caught it in time so I'll do a system flush a couple times and be good to go.

 

[MA1tR!X]

Nice find

 

[trdtoy]

I know this may not help but I have ran water wetter more miles in my '15 VT than the miles you have on your car in total and have never had this issue, with multiple coolants used.

 

[E9C900A]

Get rid of the factory coolant and put something better in, like AMSOIL HD.

 

[gsrdude]

Never heard nor seen water wetter do anything like that before, been using it for almost 20yrs in various cars.

 

[Mr.MattyV]

May also be a minor headgasket leak letting some oil into the coolant.

 

[geekdragon]

I think the consensus here is to be vigilant and watch for a repeat event. Good luck, and congrats if the solution was so simple.

 

[ZeeZ]

Hi All

I have been told the oil cooler needs replacing? there is some water on the floor under the car and radiator seemed like there was a lot of foreign substance in it. Can anyone shed some light. I posted on another thread but realized this one is probably the correct one.
firstly I need to be sure its the cooler as availibilty and shipping times are extremely long. I have attached some photos if anyone can share some thoughts. Thank you

 

[RPW00Mirage]

looks like stop leak or ... oil...

 

[trdtoy]

May start with a coolant system flush clean refill