Such good gas mileage?????

[sunbeam7011]

EVERYONE who drives a car needs to see this site if you want to get a better handle on the whole oil issue:

http://www.dieoff.org/page140.htm

PLEASE EDUCATE YOURSELF ON THIS TOPIC!!! Its not REALLY about "big oil getting rich" or total crap lines like "The reason oil is high is because of Bush". ... get real folks. If that was the case Clinton has more to blame than the current admin based on his "no-nuke power" stance during his regime. This site clears up alot of questions and sheds light on the real issue; a slowly withering oil supply globaly and an overall consumption of energy in general particularly in emerging countries such as China and Africa. In short, the days of $1.00 are never to return.

Again, PLEASE read this site. Get informed. It opened my eyes to the real reason behind gas prices. I can now debate idiots who complain about high prices.

[fyrcaptain]

15.2 BEFORE change to synthetic oil and Hypertech firm tranny shift and regular gas tune options.
1600 miles
I drive like there is a raw egg under the pedal. ROTFLOL!

[ohsmily]

Originally Posted by WEF

My Yukon doesn't quite have 1,000 miles on it yet but the fuel mileage is a pleasant surprise to me. It replaced a regular cab '99 5.3 Sierra 4x4 with 3.73's. The heavier Yukon has 4.10's, much peppier than the Sierra and with the same type driving, gets slightly better mileage. 17.5 vs. 18.

If you drive under 65-70mph on the highway, you will get almost 20 MPG out of a 2004 6.0L Denali XL (mine gets 20 but I have an AEM intake, might help a bit).

It is difficult to get over 12 with city driving (I live in LA and it is rough).

[str8Subbin]

who cares when it looks like this

[Dave Carpenter]

My 03' Yukon SLT w/5.3 & 20" wheels is 16.9 mpg-hwy according to the DIC or pen&paper (my foot is usually in it also)
My 75 GMC K-15 (I'm orig. ownr) 350ci eng.(2nd) w/400,000mi. on orig. drive train & running 10x31x15's gets 13mpg
That means in 30 years GM's mpg's for somewhat similar rides has improved a whopping 1.3mpg per decade.