2008 GMC Yukon Denili

[Burkard]

I have a 2008 GMC denili, is there any aftermarket parts to help improve my gas milage? And im sure i cant put in the cheap gas, but is it alright to use the mid grade gas? Any suggestions? Thanks

 

[iamdub]

I have a 2008 GMC denili, is there any aftermarket parts to help improve my gas milage? And im sure i cant put in the cheap gas, but is it alright to use the mid grade gas? Any suggestions? Thanks

Welcome to TYF!

*Denali

Aftermarket parts to help improve gas mileage? Hmmm... There's a custom tune, narrower tires on smaller and lighter wheels, a 3/4+ drop, roof rack delete, weight reduction...

It's not recommended, but you can run cheaper gas. Just don't tow anything heavy, avoid hills, and stay outta the throttle. Honestly, you have the wrong vehicle to be concerned with saving a few pennies on fuel! You'd spend more on modifying it for an extra 1-2 MPG than what it may save you in this lifetime.

 

[mikeyss]

Welcome to TYF!

Honestly, you have the wrong vehicle to be concerned with saving a few pennies on fuel!

You don't buy a vehicle with a 6.2 and try and get better fuel mileage. The 6.2 wasn't built to sip gas, it's meant to be a performer. Also having AWD is another fuel robber, a 2WD one may get slightly better mileage.

 

[wjburken]

I have a 2008 GMC denili, is there any aftermarket parts to help improve my gas milage? And im sure i cant put in the cheap gas, but is it alright to use the mid grade gas? Any suggestions? Thanks

What are you getting for fuel mileage now? How many miles are on it?

Edit: Also, Welcome to the forum from Iowa.

 

[BG1988]

You don't buy a vehicle with a 6.2 and try and get better fuel mileage. The 6.2 wasn't built to sip gas, it's meant to be a performer. Also having AWD is another fuel robber, a 2WD one may get slightly better mileage.

just take out the drive shaft and make a FWD lol

 

[Meccanoble]

You have the worst of both worlds. Denalie 6.2 is supposed to take Premium gas and has the worst gas mileage. To save a little, people grab the 5.3 liter. A little better on gas and can take regular with confidence.

 

[BG1988]

You have the worst of both worlds. Denalie 6.2 is supposed to take Premium gas and has the worst gas mileage. To save a little, people grab the 5.3 liter. A little better on gas and can take regular with confidence.

the nnbs tahoe had the 4.8L engine..

 

[PG01]

the nnbs tahoe had the 4.8L engine..

Stop Brent...

tell that to the 5.3 in My 2013 tahoe.


Ps....4.8 hasn’t been in a tahoe since nbs’s... a few in 07-09 but you rarely hear of them.

 

[mikeyss]

Unfortunately, 07-09 NNBS Tahoe's LS 2WD had the option of the 4.8/4L60.

 

[PG01]

Unfortunately, 07-09 NNBS Tahoe's LS 2WD had the option of the 4.8/4L60.

Yes but your rarely hear of them and it’s more fun to mess with Brent.