MICHAEL450f

On the interstate and realized my jeep temp gauge would go from perfectly in the middle to almost 3/4 the way hot. Stopped by the dealership and gave them my vin. OAT coolant. Go back to top it off and I see this color and lots of brown gunk in my reservoir. Hoping its dirty and some dealership didn't add HOAT coolant at some point. What do you guys think? And the coolant is really low, plus the sludge looking stuff is a lot worse than in the picture.
Thanks

shabbernigdo

oat is a purple color it is darker. the factory hoat is pink

MICHAEL450f

Yeah, and I know the purple can look orange in the reservoir, it just looks like there is a lot of sludge in it, almost like the two have been mixed.

MICHAEL450f

After doing some more research the brown stuff may be stop leak that they use. Would just like some input from others

crazybones340

I would drain the coolant and replace it just to ensure you have the correct fluid in there. There is no telling what was put in there. Just for peace of mind at least.

MICHAEL450f

Ok thanks

MICHAEL450f

This is what I was able to get out of the reservoir.

It's almost like a little darker peanut butter.

jeepmojo

while you refresh the coolant no kool aid

MICHAEL450f

Finally got ahold of the dealership. Service advisor said probably 10 year but went to ask the tech. The tech said what year? And he told him 13 and the tech said 5 year coolant... I explained to the advisor and he sounded like he realized the messed up big, said he would have to call me back.

MICHAEL450f

Can anyone who's dealt with this chime in on what the dealership should do to fix it? Just a flush? I don't want corrosion problems in the future and this dealership is one of the worst I've been to and I know they're going to try to get out of it.