The impossible: 04 Yukon XL Denali AWD

[2000mc]

FACT: OP wanted fairy dust to fix his problem
opinion

FACT: the website motto is: wrench smart, drive smarter
yup

1. The emphisis is on SMARTER. 2. it;s a combo deal, really u cant do one and not the other.
why not?

FACT: there are several poor mileage tanks on here that get 20% + over epa highway. But the owners buy in.
yup

FACT: and I've been holding this one back.....Only an idiot would post that he still wants to drive 80 and improve his mileage.
opinion. guess i'm an idiot, i'd love to get 78mpg and drive 80mph... think thats where the aerocivic comes in

FACT: op really wasnt interest in design changes, doing the math, or rethinking how he drives.
opinion. i think he was checking here for low hanging fruit

FACT: enabling noobies is not productive.
opinion, help them with thier ideas first and maybe they would care what else you have to say. dont slap their idea to the ground and spit on it then expect them to care what you think.

who wants new members anyway...

FACT: this is a serious and viable site. answers here tend to have meaning and substance. We dont spend time babysiting and stroking.
opinion, see above

[YukonCornelius]

I didn't know this forum eats its young. I look at it like this, everyone starts somewhere. Most adjust driving before making physical changes to the vehicle because it is free. If they really get the bug they modify things. So this guy wants to do it the other way around, no big deal. I see it as the same as someone saying they'll change driving habits but not the car. It's a snow ball effect.

[Gealii]

Originally Posted by Lbar

I didn't know this forum eats its young. I look at it like this, everyone starts somewhere. Most adjust driving before making physical changes to the vehicle because it is free. If they really get the bug they modify things. So this guy wants to do it the other way around, no big deal. I see it as the same as someone saying they'll change driving habits but not the car. It's a snow ball effect.

Im the same way i have no mods yet and perfected my hypermiling over the summer now since city driving is being added to my route mods are being added to not only keep my mileage but mods seem to be most efficient when coupled with technique

[mcrews]

maybe some of you who have a low count on your posts, should look and see who greets the noobies. Because I dont remember seeing you there......

You can have your 'perceptions' and generally incorrect statements if you like.
But that's alll they are.
My facts pertain to this poster not all noobies.

there is another suburan 4x4 noobie posting this week. did he have a bs attitude?
We don't eat our young.
And you saying that is the same as op saying it's not save under 70. It's a generalization.....and frankly a lie.
And we dont put up with bs.

I will say it again:
1. gotta go 80.....idiot, self-centered,
3. not save at less than 70......bs'er, tends to exagerant, cant admit he's busted
4. wont work out simple solutions presented
5. cant see diff in 65-80 mpg
6. defensive
list goes on.

[roosterk0031]

I don't think there is any modification to a 6.0 v8 AWD Suburban other than fully inflating the tires which is free, that will ever pay for it's self if you choose to drive 80 mph. Mcrews did him a favor of being honest with him, otherwise he'd be wasting his money.

Come on belly pan, changing the bumper, changing the rear gears (it's AWD), none will ever pay for them selfs.

[2000mc]

I Would have thought a belly pan and grill block would pay for themselves faster on a full size suv going 80 than any other situation I can think of

[mcrews]

lose of mpg after 60-65 is exponetial. It's dramatic. On any vehicle.
The gain in areodynamics is incremental.

compound that with a 4x4 set up that is exposed below the trim line.
On my Q45, I had already installed a body kit that was 2' lower.

But as others have stated, without a change in mentality, the incremental change caused by 'boltons' would be offset by the driving style that needs to do 80mph.

planning ahead, slowing w/ purpose......

[roosterk0031]

Maybe, don't really know, but I doubt he would have turned the AC off so the probably not a smart thing to do in Texas.

A belly pan on a full size Sububan, I had a 02 Chevy Bus(dumbest auto purchase I ever made), I doubt it was much different than his except 5.3 instead of his 6.0, it all ready had a sheet metal skid plate up front that got the air past the front diff pretty well, rest of it's pretty flat to rear diff, not much you can do about that. I really doubt the savings would be measureable.

[2000mc]

So if someone chooses to drive faster than 65 they should not attempt to improve their mileage by modifying their vehicle?

[roosterk0031]

Sure they can, imagine how long of a boatail it would take on a Bus, I could barely fit mine in the garage stock. But why feed unrealistic expectations, I don't really care what anyone else owns.

I messed up and fell in to the stupid trap, I have 3 kids, and thought I needed to be able to haul my 3 plus the inlaws or 3 kid friends, which happened about 10 times in 5 years. It's cheaper to drive two average cars on those rare occasions when needing to haur 9-10 people than stuck with a one Bus every day.

I tried to talk a co worker out of buying a minivan for the same reason, but he didn't listen either(30k for a 21 mpg, heck the Bus was 2/3 price, and initially got 18 & was 4x4 & could tow 7000 lbs though it never did).