I have an 02 Z28 with 7500 miles on it, At the 6500 mile oil change I switched to synthetic (mobil 1). I've done some searches here but wanted to get some opinions on the pros and cons of the two oils Redline and Amsoil. I occasionally drag/auto-x, I do like to DRIVE my car. I can get amsoil here at the local auto parts store for $6.50 a quart, redline is a little more about $8.00. I know there both good oils, what are the advantages and drawbacks to each? Which would be the best choice for me, and will they affect my warranty without an API rating.
Andy
Andy