Anyone who posts on this board see anything adverse about my using Wally World Supertech synthetic 5W30 in my '01 Mustang Cobra which calls for 5W20? I feel that 5W20 is much too thin for my "mental comfort" in this engine. I'm an "older guy" (age 60) who rarely drives "hard," but only on occasion will take the tach up to 4500-5000 rpm or so (redline is 6800, but this car has 320 h.p. coupled with a 3.27 rear end ratio and would literally be "flying right out of itself" at that engine speed!). I plan on using the Supertech filter and will change both oil and filter every 5k miles. Any comments/advice would be appreciated.
[ May 18, 2004, 12:46 PM: Message edited by: Ganton ]