When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
With the 6.2L V8, the manual recommends 91 on the gas, but states best performance with 93. Anyone notice a difference between the two? I just bought the car, so unsure (2012 SS).