LibertyCRD wrote:
Right there is your problem.
1.) Valvoline oil sucks. It's well known to have tons of parafin (sp?) in it, which if I'm not mistaken is also used in candles and other waxes. Anyway, over time this cheap oil will start to sludge up inside your engine. And as the miles rack up it can cause serious problems. Try to stick with quality motor oils like Pennzoil.
2.) You are using 10W30 which is OK...but 5W30 is what's normally recommended for your engine.
Your situation sucks though...I wish you luck in getting it fixed.
Valvoline doesn't contain paraffin. It has been some time since pariffin has been used in any brand oil.
I have used it for years in many vehicles with no propblems including my 02 KJ 3.7L.
If they are trying to blame the problem on the oil give Valvoline a call maybe they will offer some assistance and be willing to argue with DC.