Pontiac GTO 2004-2006 The Modern Goat

Cluster mpgs

Old 05-14-2012, 10:01 AM
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Default Cluster mpgs

If the mpg calculator on the cluster very accurate? Just curious if my mpgs are as good as it says sometimes lol. 04 a4 with stock size tires.
Old 05-14-2012, 10:06 AM
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What does it say?
Old 05-14-2012, 10:17 AM
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Stock tires, gears, injectors?
Old 05-14-2012, 10:50 AM
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Yea all stock. Has cai , tune, straight exhaust with borla mufflers. City will be between 16-21 depending how hard I drive it, around 24 on the highway.
Old 05-14-2012, 11:42 AM
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With easy driving I can get about 18.4 city and 25-27 highway on 93 octane. But that's with a m6 z28. But same motor. I believe gto's weigh a bit more. But I would say its fairly accurate.
Old 05-14-2012, 11:53 AM
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That what I get with same mods + 3.91's
Old 05-14-2012, 12:09 PM
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I was just curious if anyone elses reads high or if they are accurate.
Old 05-14-2012, 02:37 PM
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Should be pretty damn accurate.

Figured out by mileage/fuel used (based off injector pulse)
Old 05-14-2012, 04:07 PM
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I thought hwy would be 20-21 for an A4.
Old 05-14-2012, 06:20 PM
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Originally Posted by gmantheman
I thought hwy would be 20-21 for an A4.
I just Drove 2000 miles of interstate across the country in my 04 A4 GTO and I got 20-21 mpgs the whole way pretty much on 93 octane
Old 05-14-2012, 09:25 PM
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The only way to really tell is to fill up, note miles, drive, fill up again and do the math. Injectors can really botch up the calculations. I'm about 13% off but it doesn't matter. It is what it is.
Old 05-14-2012, 10:49 PM
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Originally Posted by Jake8493
I just Drove 2000 miles of interstate across the country in my 04 A4 GTO and I got 20-21 mpgs the whole way pretty much on 93 octane
@ 70-75mph and turning 21-2200 rpms you will see around 21-20 mpg in an A4. Knock it down to 60mph @ 1800-1900 rpms and it jumps up around 24-25mpg.
Old 05-14-2012, 11:19 PM
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I normally just figure the mileage to gallons used but it's hard to get the same amount of gas in every fillup in the goat. Certain pumps won't even fill it up all the way!
Old 05-15-2012, 11:26 AM
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Originally Posted by youngbuck
I normally just figure the mileage to gallons used but it's hard to get the same amount of gas in every fillup in the goat. Certain pumps won't even fill it up all the way!
I'm glad someone else has this problem. Sometimes, I can only fill up to 7/8 tank. It's weird, never had that problem before.
Old 05-15-2012, 11:31 AM
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Originally Posted by youngbuck
I normally just figure the mileage to gallons used but it's hard to get the same amount of gas in every fillup in the goat. Certain pumps won't even fill it up all the way!
When I checked mine manually it was always within 0.3 MPG of the gauge. I chalked that up to not being able to fill it exactly the same. I would say it is quite accurate.
Old 05-15-2012, 12:06 PM
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Originally Posted by youngbuck
I normally just figure the mileage to gallons used but it's hard to get the same amount of gas in every fillup in the goat. Certain pumps won't even fill it up all the way!
I had the same issue with my mustang and now with the GTO. You may already know this but you need to do is rotate the pump-handle to about an 80 degrees towards the rear of the car.
Old 05-16-2012, 02:00 PM
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Sounds about right. My 04 M6 is gettimg best of 24.5 highway on a 2 hr trip CC set at 70mph


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