Octane question for Tune
Moderator: mikel
Octane question for Tune
My question is on Octane. I have a 2014 Jeep Grand Cherokee 5.7L and per my car's manual it recommends 89octane. Not sure why but I see there is no tune for 89. Only 87, 91 and 93. I didn't notice much gains on the 87 perf tune with 89 ocatane in the tank, will 91 make much a difference? I don't mind running 91 if it's going to give me some more response but I just want to be sure it's not going to be a problem since the dealer recommends 89. I'm hoping this thing wasn't all hype and a waste of money
- mikel
- Posts: 57793
- Joined: Tue Jan 16, 2007 1:17 pm
- Location: DiabloSport World Headquarters
- Contact:
Re: Octane question for Tune
never a problem to run higher octane than recommended.
the 87 tune makes about 15 rwhp more than stock with 87 in the tank, the 91/93 tunes offer greater gains.
Thanks
the 87 tune makes about 15 rwhp more than stock with 87 in the tank, the 91/93 tunes offer greater gains.
Thanks
Mike Litsch
DiabloSport Brand Manager
Diablo Tech support by phone:
561-908-0040
M-F 8:00 AM to 5:00 PM EST
tech@diablosport.com
DiabloSport Brand Manager
Diablo Tech support by phone:
561-908-0040
M-F 8:00 AM to 5:00 PM EST
tech@diablosport.com
Re: Octane question for Tune
Are there any Dyno sheets to prove that? It definitely doesn't feel like that much of a difference