I use what ever gas is on sale. Period ( my cars only require 87 ). Once in a blue moon I'll throw in 93 if on sale. Noticed it burns much faster than 87. So, screw that . 87 is 87. They add the additives at the station or the depot. My bro-in-low trucks gas and that's how it works. I throw in a bottle of Chevron and dry gas every now and again to clean things up, and get moisture out. Only use the red bottle of HEET. That is the real isopropryl alcohol that removes moisture. The yellow bottle does squat. This ethanol fuel sux anyway. Now I heard they want to increase the percentage. GREAT

More black tailpipes. Garbage corn liquor they're feeding us. LOL