New alarm install = bad MPG?

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Oct 25, 2015 | 11:08 AM

#11

TNtech

Site Moderator-Dodge Tech

Joined: Sep 2010

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From: Nashville, Tennessee

Always use MATH to calculate your MPG. The overhead is a running average to help the driver develop throttle habits that save fuel...nothing more.

Last edited by TNtech; Oct 25, 2015 at 11:12 AM.

Oct 25, 2015 | 02:10 PM

#12

Gary-L

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From: Central Oklahoma

Correlation <> Causation

Oct 26, 2015 | 06:30 PM

#13

MikeHTally

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From: N. Florida

We used to joke about that. "Yeah, I saw him in the store last weekend. Ever since that, my phone doesn't work."

Oct 26, 2015 | 06:33 PM

#14

MikeHTally

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Joined: Aug 2007

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From: N. Florida

Quote:

Originally Posted by irishbandit77

Nope it's 4.7.reprogrammed it last night and there was an immediate difference in throttle response and power. I'll fill gas to the same line as before and re-calc the MPG's this week

Forget filling to the "same line", fill it full, drive it and fill it full again. Miles/gallons (make sure you compensate for odometer error). That's the only way to accurately calculate the mileage.