Octane
Thread Starter
New Member
Joined: 03-11-08
Posts: 66
Likes: 0
From: Canada
Octane
What fuel map would the cobalt 2.4L use if I used 89 octane???
also would mileage be the same as 91? :S
also would mileage be the same as 91? :S
Last edited by afterlife04; Mar 4, 2010 at 01:37 PM. Reason: Automerged Doublepost
Senior Member
Joined: 08-27-08
Posts: 1,413
Likes: 1
From: Beiseker AB Canada
It will always start out on the high octane map. The computer doesn't know whats in the tank 
As soon as there is knock detected, it will pull back timing and drop to the low map.
On 89, it is likely on the low map most of the time.....not likely going to break anything but why give up hp for the sake of what? Less than dollar a tank savings over 91?
As soon as there is knock detected, it will pull back timing and drop to the low map.
On 89, it is likely on the low map most of the time.....not likely going to break anything but why give up hp for the sake of what? Less than dollar a tank savings over 91?
Thread
Thread Starter
Forum
Replies
Last Post
twilson380
2.0L LNF Performance Tech
6
Sep 14, 2015 10:52 AM
Macgyver2484
Parts
2
Sep 2, 2015 05:44 PM