uncle

Buy a cheap OBDII reader, plug it in, and read the code yourself. It will tell you where the problem is. What code continues to reappear? Stop throwing parts at it, use the reader and address the specific problem.

Buy a cheap OBDII reader and acess the codes yourself, record them, and reset. When and if the lights come back on, use the meter and see if the codes are the same. The VSC and Trac lights probbly mean nothing and are OK. You are looking for the code that identifies the real problem. It could be an air flow sensor (primary Oxygen sensor) or something else. In any case, with a reader, you can identify and either fix it yourself or have someone do it for you. A bad gas cap can cause a code,

If you connected your car to an OBDII reader, it will probably tell you one of the primary oxygen sensors is bad. The result you see are sympathetic and false.

WalMart full synthetic is packaged by Warren Distibuting. They are not a refiner. They private label fluids for different groups. If you look at the specs, you will find this is a good product and will serve you well. It is my understanding that their product does come from the Pennzoil/Quaker State group. The additive package may be somewhat different, but that is probably about it. A very good value.