Thread: Strange Yellow Residue on Oil Cap?

Originally Posted by Logan541

Hi Hippo,

It's definetly coolant could be a blown head gasket, As for sittin causeing the problem, I used to live in NY where it got real cold and mositure was plentuful, I've left cars sit 9 months at time and NEVER had it cause that problem. I say do a compression test on all cylinders and YOU DO IT so you are sure it was done and done properly, low compression I'd say head gasket. See if Bill boost or drunkie back me up on that.

I also rarely drive it more than a mile at a time.