I have an 89 GT vert. I have done some mods to it.. Flows, BBk H-pipe, 3.73. The car has 80,000 miles on it. I live in Clearwater, Florida, so it gets hot here.
90 degrees in the summer. All along, I have used Castrol GTX, 20w-50w. I am thinking about switching to Mobil 1. Should I, and what would be the right weight? Thanks.- posted
19 years ago