View Single Post
Old 10-26-2022, 09:23 AM   #3 (permalink)
ksa8907
Master EcoModder
 
Join Date: May 2012
Location: Tampa, FL
Posts: 1,745

Volt, gas only - '12 Chevrolet Volt Premium
90 day: 38.02 mpg (US)

Volt, electric only - '12 Chevrolet Volt Premium
90 day: 132.26 mpg (US)

Yukon Denali Hybrid - '12 GMC Yukon Denali Hybrid
90 day: 21.48 mpg (US)
Thanks: 206
Thanked 420 Times in 302 Posts
Quote:
Originally Posted by FlashStopFall View Post
In my 2003 Jeep Grand Cherokee with the 4.0L, according to DashCommand, I’m using 1.2gph at idle with the A/C on (it’s about 0.9-1 with A/C and all accessories turned off). This just seems too high, meaning I would be able to idle for only 16 hours on a full tank. Does anyone have ideas to lower idle fuel consumption or find the culprits? (I run E85, but gph seems to be about the same on 87 octane).
That does seem quite high, what engine speed is this at?
You might check to be sure your battery and alternator are working properly. My guess is the 4.0 i6 can idle pretty low if you can get the computer to allow it.
__________________




  Reply With Quote
The Following User Says Thank You to ksa8907 For This Useful Post:
FlashStopFall (10-26-2022)