6.2 to 5.3

[iamdub]

This is strictly my wife’s vehicle I have never driven it (for certain reason) I drive my duramax and that’s it. She does have a heavy foot but dang 10 it’s crazy to me. She has her work car that gets 28 but it a turd and I refuse to ride in it. Broke flex pipe makes it sound great....I guess it’s time to buy a car for the weeks we don’t have all the boys

Where are you located and how many miles on the 6.2?

 

[Cbark2305]

Where are you located and how many miles on the 6.2?

South of Chicago 60 miles....I think 115-120k

 

[iamdub]

South of Chicago 60 miles....I think 115-120k

Well, shit. Too far.

 

[kbuskill]

Put a block of wood under the pedal on the right and watch the mileage go up... lol

5.3 won't get any better mileage driving like that... truck weighs the same but would have less engine to get the same amount of work done so it would be working harder.

 

[PG01]

Yes, it can be done easily. Every thing bolts right up, you may need to adust the tune tho. They are

lol, sounds like you drive like me, my DIC is pretty much dead set on 10.4 (2012 6.2l Denali xl), I can make it go up by adjusting the lead in my foot

sorry about your dic.....

 

[Cbark2305]

Would a black bear tune help out?

 

[Cbark2305]

Having a hard time justifying spending $600 for autocal

 

[Tonyrodz]

Having a hard time justifying spending $600 for autocal

I'd say yes. Guys report better mpg, as long as you keep your foot out of it. Def better spg!

 

[adventurenali92]

Small city trips are going to be hard for the 6.2. Constantly stopping and starting, slow moving traffic is never going to get you good gas mileage. If you’re really concerned about fuel economy get your wife a submarine outback wagon. Room for the kids and still decent fuel mileage. The Denali 6.2 is made for long hauls. That being said a black bear tune will definitely help! Worth the expense!

 

[Tonyrodz]

Small city trips are going to be hard for the 6.2. Constantly stopping and starting, slow moving traffic is never going to get you good gas mileage. If you’re really concerned about fuel economy get your wife a submarine outback wagon. Room for the kids and still decent fuel mileage. The Denali 6.2 is made for long hauls. That being said a black bear tune will definitely help! Worth the expense!

Submarine Outback?