Fuel consumption

GMC_eleavtion17 · September 16, 2020

So 2017 gmc elevation. 5.3 4x4 DOD delete before I put wheels and tires I was getting around 22-19 mpg WITH deleted DOD. Now have 305/55/20 nitto’s AT Now getting 20-17 mpg. Ride did get stiff but not as bad as my 96 z71 with 35/12.5/15. Anybody else getting the same with the DOD delete

catpartsman · September 16, 2020

I’m guessing your new tires and wheels are heavier than your old ones which is causing a significant drop in mpg’s. You are running 8 cyl all the time now rather than 4 on occasion so of course your mileage will drop simply due to that.

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Grumpy Bear · September 16, 2020

3 hours ago, GMC_eleavtion17 said:

So 2017 gmc elevation. 5.3 4x4 DOD delete before I put wheels and tires I was getting around 22-19 mpg WITH deleted DOD. Now have 305/55/20 nitto’s AT Now getting 20-17 mpg. Ride did get stiff but not as bad as my 96 z71 with 35/12.5/15. Anybody else getting the same with the DOD delete

Curious. What tire was being used to get 22-19 mpg?

GMC_eleavtion17 · September 16, 2020

31 minutes ago, Grumpy Bear said:

Curious. What tire was being used to get 22-19 mpg?

Stocks. 275-55-20

Grumpy Bear · September 16, 2020

3 minutes ago, GMC_eleavtion17 said:

Stocks. 275-55-20

And were they a highway tire or an all terrain tire?

GMC_eleavtion17 · September 16, 2020

23 minutes ago, Grumpy Bear said:

And were they a highway tire or an all terrain tire?

A/T Wranglers

newdude · September 16, 2020

So...you put a wider, more aggressive and larger diameter AT tire, that depending on which one you picked (P or LT) is 11-21 pounds heavier per tire and then are wondering why you've lost MPG?

Have you gotten something like a Hypertech or Superchips device to re-calibrate your speedometer as well for accurate readings with the larger diameter tires? 31.9" stock vs 33" that's 2.5mph so when it reads 60mph on the dash, you are really doing 62.5mph.

Grumpy Bear · September 16, 2020

2 minutes ago, newdude said:

So...you put a wider, more aggressive and larger diameter AT tire, that depending on which one you picked (P or LT) is 11-21 pounds heavier per tire and then are wondering why you've lost MPG?

Have you gotten something like a Hypertech or Superchips device to re-calibrate your speedometer as well for accurate readings with the larger diameter tires? 31.9" stock vs 33" that's 2.5mph so when it reads 60mph on the dash, you are really doing 62.5mph.

So I set the table and you stole my steak?

:crackup:

Yea, weight and tread squirm eat fuel. And it's not just the extra mass spinning up and down but you put your foot into it further to get the same 'feeling' of acceleration. It sits a hair higher and outside the trucks built in aero effects package. It's like change in your pocket. Collect enough of it and you have a dollar.

Grumpy Bear · September 16, 2020

4 hours ago, GMC_eleavtion17 said:

Anybody else getting the same with the DOD delete

I see no one has addressed the second question. Perhaps a question mark would have highlighted it more. Just say' n.

The effectiveness of DOD is 100% user defined. For guys whose normal driving is 75 mph they never notice it's effects because it is almost never on. For guys like me that travel inside it's working parameters loosing it has a large impact on fuel efficiency.

GMC_eleavtion17 · September 16, 2020

2 hours ago, Grumpy Bear said:

I see no one has addressed the second question. Perhaps a question mark would have highlighted it more. Just say' n.

The effectiveness of DOD is 100% user defined. For guys whose normal driving is 75 mph they never notice it's effects because it is almost never on. For guys like me that travel inside it's working parameters loosing it has a large impact on fuel efficiency.

I rather loose it then destroy a motor with DOD.