dkryan, I do get pretty good mileage with my car, about 26-28 on highway. I would like to use GC, but I can't find any around my area. So you all suggest just using dino for my car. Both of our cars drive about 50 miles everyday for work.
would you guys switch from mobil 1 to havoline synthetic? I have a 2001 I30T and a 2006 Corolla that both uses mobil 1. I was looking at test results and havoline synthetic is a realy good performer. Has anyone else moved from mobil 1 to havoline synthetic? This move will save me a lot of money...