[GreenDiesel]

If any customers have pre and post tuning fuel economy and wish to post it here, that would be awesome.

 

[DKinney]

Never did better than 27.3 mpg. average on a full tank. Tune installed on Sunday and a half tank of fuel. Filled up this morning and was at 28.1 after a half tank. AND Ive been playing with the added power as well. It'll be interesting to see where it's at after a whole tank with the GDE hot tune and transmission tune.

 

[Pergrem]

I went from 22-25 mpg to 28-30 mpg. Kentucky rolling hills and curves. Non-off-road version.

 

[Pergrem]

I’ve seen 32.2 this morning.

 

[GMforlife]

I was getting 20.1 before the hot tune, Trans tune and tire adjustment. I am now averaging 28.2. I have a lift and I'm running 33 inch tires.

 

[Pergrem]

Update. My best 450 miles has went from 22.x mpg to 28.8 mpg.

 

[sabbotage]

Hit 30mpg today on the 450 average.

 

[Rockcrawlerdude]

That’s fantastic!

 

[Rockcrawlerdude]

These are phenominal results. I can’t wait to do my reviews on the green diesel tune versus the DT. I’ve been getting ok mileage on DT but nothing like these results

 

[sabbotage]

That’s fantastic!

I should be hitting 31mpg at the 450 average on my way home today. My current tank of fuel is about half gone and my trip mileage says 32.4mpg

 

[thx2net]

Wow, I lost 6 mpg with my lift and tires. How can I tune in California... this state blows.

 

[CleverUserName]

Wow, I lost 6 mpg with my lift and tires. How can I tune in California... this state blows.

Even if you are using your truck in an off-road application, GDE will not sell you any of their tunes. It is rediculus...

You would need to use a credit card w/ a billing address in another state besides CA and have it shipped to different out-of state address.

 

[Rogermoon]

If you want I’ll handle the transaction for you and ship it to you from Texas

 

[Pergrem]

Towed yesterday since the tuning. 370ish miles at 22 mpg. Towed my bike and 6.5x12 foot utility trailer. Can't compare vs stock as this was the first time on this route. 140 miles of the total round trip involved very step hills and very sharp curves.

I

 

[GMforlife]

Wow, I lost 6 mpg with my lift and tires. How can I tune in California... this state blows.

Hey man, I will also offer to help you get the tune if you want.

 

[martin]

If any customers have pre and post tuning fuel economy and wish to post it here, that would be awesome.

Before Green diesel tune Hwy 30 mpg @ 65 mph, in town 23 mpg. This week tune will arrive, will update in near future after tune results.

 

[thx2net]

Hey man, I will also offer to help you get the tune if you want.

Thanks, I just created a thread about a tune for California also. What kind of tune? I don't want to have to revert it to pass smog in 2 years.

 

[Rockcrawlerdude]

Thanks, I just created a thread about a tune for California also. What kind of tune? I don't want to have to revert it to pass smog in 2 years.

Then go with the emissions friendly Duramaxtuner.

 

[CleverUserName]

Thanks, I just created a thread about a tune for California also. What kind of tune? I don't want to have to revert it to pass smog in 2 years.

I don’t think “they” (CA smog techs) can actually see the GDE tune. I think they are just looking for ready codes on all the emissions equipment when they plug in. Plus a visual inspection of the engine. As long as you don’t have any visible mods or a catch can you should pass smog.

Somebody with more knowledge please correct me if I’m wrong...

 

[18Z71Minimax]

Are any of these hand calculated numbers?