[Clyde65]

If your gonna put $20/5qt “synthetic” oil in your pride and joy, go for it!

Synthetic oil is designed, not refined!
As an Amsoil dealer, I am sold on their oil, it is 100% synthetic and Amsoil does tests all the time to prove how well their products perform. I’d it cheap? No, but it’s worth every penny!

You get what you pay for!
I had a 2007 Hyundai, with 278,000 miles. Before I sold it, I had my local mechanic scope the cylinders and it was clean as new and still had hash marks visible. I Always used Amsoil XL and changed every 5k, I use it in my LS as well as my 17 5.3 LT.