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Discussion Starter #1
I have a PPE Standard that I've been running on level 1 for the last year or so. I just bought a large 5'er and plan to move up to level two for towing. I also just moved up to slightly larger tires (285's) Does anyone know if the DIC reports accurate fuel economy once the tuner's program is installed? What about after I adjust for the larger size tires? I changed the tire size in the program but I can't tell if the change went through or not. Basically I don't know whether to trust the info my truck is giving me. Any thoughts are appreciated. (Just to save some of you some time: I know, I know, I should just get EFI Live) :)
 

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Discussion Starter #2
Anyone??
 

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The DIC is usually off even in stock trim, so doubtful it will be accurate with the PPE on it.

Just hand calc it and run those numbers against what the DIC is saying.
 

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Discussion Starter #4
Thanks..I'll try that. I figured I couldn't trust the DIC but wasn't totally sure.
 
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