devinsteen

After reading some posts about gas I've decided to start running regular 87 in my car again. I've been using premium for a year.....is it okay to just switch to 87 or should I use the midgrade gas first then gradually use 87? I guess it's kinda a stupid question, but I want to be on the safe side.

Chopper

Go directly to 87.The 87 will be diluted by whatever you are running now and it will gradually return to 87 in a couple of fill ups.

1{}D{}{V}{}DGT

why do u want to start using 87 is there somethin i need to be filled in about

devinsteen

Chopper, thanks for the info. The only reason to use premuim is if your timing has been bumped up. Otherwise regular (or whatever the manual recommends) is what you should be running.

Jakes

Refinerys add compounds to increase the octane rating. This slows down the burn rate of the gas. This is done to reduce the chance of spark knock or detonation in high compression motors or those that have the timing bumped up. To maximize HP you should run the lowest octane fuel you can (highest burn rate) without getting spark knock or detonation.

mdvaldosta

OMG - everyone is actually getting it now! Im so happy

Chopper

It's funny how people pay attention when things start to lighten their wallet.

Guest

werd.

Redline03GT

Random fact for the night. Thanks guys - Now i feel good about filling up with 87 octane this morning

Aliate X

Wow ive been putting premium in my car forever, time to start putting 87.......until supercharger time.