Fuel efficiency improvements

[_Dylan_]

I get 17-18 highway going 70 mph. 15 mpg going 80 mph. Completely flat roads with the cruise control on. Around 12-13mpg in the city, I have a heavy foot in town....Best city was 14 mpg.

IMO, if you commute a long ways you should buy a cheap 4 banger that gets 35 mpg. If you need a winter vehicle, buy a cheap subaru legacy that gets 25 mpg.

I don't drive a lot, so the mileage isn't hurting me too bad. I think the best way to get better gas mileage is to leave earlier for work and draft large trucks going 65mph. You should be able to get 18-19 mpg easy.

 

[Stresst]

I get 17-18 highway going 70 mph. 15 mpg going 80 mph. Completely flat roads with the cruise control on. Around 12-13mpg in the city, I have a heavy foot in town....Best city was 14 mpg.

IMO, if you commute a long ways you should buy a cheap 4 banger that gets 35 mpg. If you need a winter vehicle, buy a cheap subaru legacy that gets 25 mpg.

I don't drive a lot, so the mileage isn't hurting me too bad. I think the best way to get better gas mileage is to leave earlier for work and draft large trucks going 65mph. You should be able to get 18-19 mpg easy.

My 2000 Escalade (before I traded it in 3 weeks ago) was getting 7-8.5 mpg when I used the a/c.......

 

[_Dylan_]

Damn! Good on you for selling it. Something was seriously wrong with it.

 

[SunlitComet]

Daaaaaaaaammmmmmmmmmnnnnnnnnnnn!!!!!!!!!!!!!!!

 

[Denali0229]

I get 9-11 in the city. I tried everything from fuel system flush, CAI, tune, etc but I still get the same amount. I've just accepted the fact I get bad mileage. I get like 15-18 on the highway. If I do a mix if both, I usually end up around 12. But I do almost all stop and go so nearly every fill up I'm at the 10-11. I can see my mileage going down just by sitting at a light LOL.

Sent from my PC36100 using Tapatalk 2

 

[Stresst]

I get 9-11 in the city. I tried everything from fuel system flush, CAI, tune, etc but I still get the same amount. I've just accepted the fact I get bad mileage. I get like 15-18 on the highway. If I do a mix if both, I usually end up around 12. But I do almost all stop and go so nearly every fill up I'm at the 10-11. I can see my mileage going down just by sitting at a light LOL.

Sent from my PC36100 using Tapatalk 2

What year is your Denali? I just purchased a 2007 and after two full tanks of gas I didnt see 11mpg once! Always 10 and change.......Today I replaced the filthy air filter with a K&N, did an oil chage w/ Castrol Synthetic, and put a few ounces of Lucas injector cleaner in the tank. Hopefully it will improve some, SMH

 

[4myfreedom]

Proper way to seafoam intake?

 

[SunlitComet]

for a vortec engine.
http://www.seafoamsales.com/cleaning-the-induction-system-on-vortec-and-other-exotic-intake-engines/

 

[McFizzl]

Pulling around 15 with 265/75/R16 all terrains. 3.73 gears. Plain vortec with 4L60e. Also have a fuel pump thats flaking out.

 

[KPOD]

Pulling around 15 with 265/75/R16 all terrains. 3.73 gears. Plain vortec with 4L60e. Also have a fuel pump thats flaking out.

Highway right?