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Old 04-04-2012, 07:21 AM
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would you tune it?

my dads truck is getting around 15 mpg in stock form with his 08 with just an intake. he is very pleased with it as he is getting 15 mpg just driving around, not even on the interstate. i have been telling him to get exhaust and a tuner.
would it be wise to tune it when he is getting crazy milage for a stock 6.4? would he still see a fuel milage increase?
just curious because anyone else with a 6.4 around me is only getting 10-11 mpg
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Old 04-04-2012, 07:50 AM
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Just curious, is he hand calculating it or looking at the msg center to get the 15MPG?
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Old 04-04-2012, 09:20 AM
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Read out says 15. Hand calculating comes out to around 14
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Old 04-04-2012, 10:10 AM
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Quote:
Originally Posted by farmboy1 View Post
Read out says 15. Hand calculating comes out to around 14
That's about what I get hand calculated. I'd say he is normal.
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Old 04-04-2012, 11:14 AM
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Would tuning still increase this? Then if one day we tuned it back to stock would he still get that same mileage.
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Old 04-04-2012, 11:34 AM
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Typically people see an increase when tuning but there have been a few exceptions. Reverting back to stock would most likely get you the mileage currently being seen.
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Old 04-04-2012, 12:31 PM
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There is no doubt he'll get better MPG because it takes fuel to do a regeneration when stock.
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Old 04-04-2012, 01:32 PM
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Thanks guys. Just want to get thoughts. This is a process in getting him talked into it
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Old 04-05-2012, 06:15 AM
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Tuning not only will help your mileage, but it will help the truck live. Regen is not a process that increases the longevity of the motor because of dilution.
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Old 04-05-2012, 06:29 AM
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10-4 TO THAT, the mpg increase is a great bonus, but the real advantage is getting rid of the stuff that is destroying your motor......
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