Hello,
I have a 2006 Solara V6 SLE. I've always gone to my dealer for oil change. But since my recent relocation, I had to go to walmart for my last one.
So they put Pennzoil 5w30 (bulk) in it. I don' t know if it's because of the winter weather, my recent long road trip, or the cheap oil, my car has been louder than it used to be at first start up. Also, if I shift to D from Parking, and release the breaks immediately, the car tends to *jump* forward.
Am I over-paranoid, or should I sue walmart

?
What oil type should I use?
Thank you very much,
Hao