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gas mileage

Haha when I feel like chancing messing it up or having an engine that never really runs right. I'd swap the entire motor and probably trans with ones from a gp that got in an accident or something
 


Its nice how from like a 20-25 roll it pulls pretty good.

Me iv been pulling maybe 26-27 mpg lots of back roads and maybe about 6 miles of in town driving.

Sent from the Milky Way
 
My car loves those 55 mph roads it seems. 55 is a good speed for mpg with my final drive. 70 is a bit much, I know I'm Losing plenty of mileage since the rpms are at at about 2,200
Whereas our impala's final drive ratio is higher and is right about 1,900 at 70 but doesn't have the torque mine does off the line
 
I found 65/70 to be the best. I pulled like 30 mpg crusing at 70/65 for 2 hours but once I hit 75 it went down to like 28. I have discovered I gained maybe 1 mpg going from 55 to 60 on the back roads. The DIC shows maybe 28 but it's actually like 26 on my commute. I always use fuel log to log all my fillups for MPG reasons.

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Sent from the Milky Way
 
400-420 miles per tank with 50 city (more like country) miles a day. I think it's due to the overkill tune tho. Stock I would get about 380 per tank

I'm also N/A
 
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You're SC right? I've debated a tune just to gain MPGs but haven't tried to calculate the difference with having to run 91+

Sent from the Milky Way
 
Running 91 or 87 won't change mpg but 91 is required and I can tell when 91 is not ran cause the car runs rougher on both my gtp
 


Hmmm, like whats your highway mpgs with it like at 55 or 70 around 30 or more? I imagine not much change in power just because how that stuff works right?

Sent from the Milky Way
 


I'm debating on a PLOG too. Will said a plog and downpipe will help MPGs. I just put my DP on during my last tank so I'm gonna really see what it's like with this fill-up
 
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