Stuck on 14 MPG

[smann]

Correcton: I get 140 miles a tank, works out to 9MPG

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[Stroked89coupe]

Has anyone seen lower than 14? I wonder if thats where the calculation threshold stops on the dash.

 

[Bahndvr]

For you guys making less than 14 MPG

Has anyone seen lower than 14? I wonder if thats where the calculation threshold stops on the dash.

That is a good point

 

[Nomadic]

Correcton: I get 140 miles a tank, works out to 9MPG

It's cheaper to just take Uber.

 

[A7X]

Checked my fuel consumption over the last 4,400 km (2734 miles). 10.4 l/100 km. which is 27.2 imperial mpg or 22.6 US mpg

 

[Bahndvr]

I've calculated my MPG and it's 13.09 to be exact which is absurd. I've never had this low of MPG even after the larger injectors.
Can't the tuner see that there is more fuel consumption now then before?

 

[ahl395]

I've calculated my MPG and it's 13.09 to be exact which is absurd. I've never had this low of MPG even after the larger injectors.
Can't the tuner see that there is more fuel consumption now then before?

You have a supercharged V8 mustang and probably drive it accordingly...

What was your MPG before the headers?

 

[Bahndvr]

You have a supercharged V8 mustang and probably drive it accordingly...

What was your MPG before the headers?

In May I took a 250 mile cruise

 

[ihasnostang]

i had a SS 8 spd camaro rental the other weekend and i got 30mpg until i started getting on it on the highway which i ended at 25mpg

 

[texasboy21]

Isnt the 5.0 rated at 15 mpg city? 14.x seems about right for real world mpg.

 

[CFUG]

If you had a OLMX and a laptop. you could always monitor instantaneous consumption to see if signals, calcs are being handled properly within ECU

 

[Bahndvr]

I'm assuming OLMX is an OBD reader which I have a Mongoose Pro

 

[gqneon]

FWIW - I had a tuner I used one time for a dyno tune and as soon as I got the car back my MPG readings were all over the place. They didn't get stuck at any number but they were WAY off - showing like 25+ mpg and stuff in the city on blown pump gas car at the time. I had other issues with the tune and service and consequently unloaded it and went back to someone else I trusted. If you've been running the tune a year though without that issue then it seems odd that it would be tune related. Not sure if that's helpful or not.

 

[texaswrx]

Average 20, mostly highway, 2015 PP GT

 

[Deleted member 35786]

DD mine and average 17-20mpg in city, about 25-26hwy between 75-80mph using cruise control. Its an auto, using 87 or 89 octane on a stock car.

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