- Nov 2005
It's a scam.
Show me any reputable report of where it makes a diff.
Most gasoline has detergent additives in it with all engines pretty much fuel injected.
It's like the 93 octane scam......
I have a LS2 6.0 Corvette motor in my 2006 GTO that asks for Premium.
I run 87 or 89 and the black box adjusts the timing accordingly.
No knocking or detonation problems.....
Oh...get your oil changed every 3000 miles too...NOT
You're an angry elf.
Sent from the official Slickdeals App for iPhone & iPad.