MPG
 

I know when I first bought my Silverado, the listed MPG was 21 Highway and 18 City. I know this is not an actual representation of the true mileage since my average MPG's for the last 6 years have been 14 to 15 MPG's...

After the Intake system, muffler and Diablo Predator 87 Octane tune, I have raised my MPG's back up to 16 to 17 MPG's.. I actually drove 370 miles on one tank.. Probably could have gotten more if I actually drove the speed limit, also I noticed that I kinda punch it off the line ever since I put in my Intake System :)

What is your Average MPG's???

RE: MPG
 

14 in the city, about the same as when i got it, but i drive hella faster, so i guess its better

RE: MPG
 

19 on the highway.

RE: MPG
 

I got 19 on the highway the last time I took it for a long drive. And it's still a stock truck (it was before I descreened MAF)

RE: MPG
 

Same here 19 on highway and thats with a ton of hills. I have a 180 degree thermostat. Do you guys think that will help or harm my mpg. I know that in the winter it prob will.

RE: MPG
 

...I mean I have it purchased but not installed yet.
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RE: MPG
 

i get about 21 cruising at 70

RE: MPG
 

chevy112488, what did it do to your performace (the 180 thermostat) ?

RE: MPG
 

Also thats is 19 with a 4 wheels drive running about 80.

RE: MPG
 

i couldnt really tell too much of a difference in performance, but throttle response got better

RE: MPG
 

Cool. Does it pull better? Like merging into traffic and going up hills?

RE: MPG
 

Same here!

If I am pulling the racecar, (same speed on the interstate) I get 13-14 average...

RE: MPG
 

regular driving - 16.5, taking it easy 20. No long highway numbers yet though. I usually get about 400 miles to a tank.

RE: MPG
 

Man smoke20 400 miles to a tank you must drive like an old man:D

RE: MPG
 

I get about 360 - 380.

RE: MPG
 

I get about 19.5 or so on the interstate running 75. Bout 400 miles to a tank.

RE: MPG
 

I've been getting 15.5, but I haven't checked again since I installed a Granatelli MAF.

RE: MPG
 

Hunt- I think you know better than that.

I tried to get my boss to race again last night, but no go. What a wus, so I just made him look bad to the CEO who was riding with him.

RE: MPG
 

i was getting poor mileage around 14 but since i replaced the throttle body ive gone about 100 miles on an eighth of a tank. what a jump.