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Discussion Starter #1
So I had enough of my 15 Silverado 5.3, 16mpg. I had a 02 CC duramax that got better mpg. I finally found a 17, 2wd grey Colorado that was just sitting there begging for me to take it home. I like it, its working out. I hope to have many years and 400K before its over. I do want to get as much out of this truck as I can. I hope to find a tune that gets me closer to 40mpg?????? I have to believe that someone on here can do it.
 

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Welcome. Didn’t know they made the diesel ones in 2wd. Don’t know of anybody getting in the 40mpg range but dream big dude!
 

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Are you looking to tune it yourself or buy a tuner? There are a few of us tuning them like myself, and there are also a few good options from vendors who offer remote tuning.

GDE seems to be a popular choice as far as a vendor to buy a tune from.

If you choose to do it yourself you need either EFI Live or HP Tuners.
 

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Discussion Starter #4
So far so good, love this truck. Finally got thru a tank, 26ish, that's with filling up to the top. It was more than the dealer did so I'm waiting on this next tank for a better reading. The dealer said they willed it up???? Don't know about tuning just yet maybe wait a bit till I get a few miles on it. I think like my other diesels there is room to grow
 
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