Well everyone gave me a hard time for buying a truck with a V-6, I know I lose quite a bit in power but the fuel mileage sure makes up for it, I have an 80 liter tank and I get 720 kms out of the tank or for the americans on the site I have a 21 gallon tank and I get 450 miles which translates to 21 miles to the gallon or 11 liters per hundred kms. It is more than I was expecting.

 

I got a 2000 XLT 4x4 V6 5 Speed and while I feel it has plenty of power for what I need, I have only gotten 14MPG. It is a truck and that is what to expect. I'm not hard on the gas either. I would like to get better gas milage but don't expect it.

 

My 97 4.2w/ auto was getting 19MPG constantly until a couple weeks ago when the check engine light came on - its a doggy now(14mpg). I have to drive my wife's cavalier to work to save $$ with the higher gas prices.

 

WOW thats good, around town i get 13, freeway 15-16 and towing 9-10..... And I dont drive with a heavy foot, its just never got good gas millage....

 

I filled up for the 2nd time last week and ended up with 20.05mpg!!!! Much better than my previous 96 w/4.9, which got 15-16max.

 

I dont think those conversions are right. Our tanks hold more than 21 gallons. At least mine does. The most I have gotten out of a full tank is a little under 450 miles. I usually fill it up at about a quarter tank so I dont keep good track of my mileage.

 

Our tanks are 25 gallons. I get about 16 - 18 on average...

 

That is awesome if you are getting 21 MPG, when I had my V-6 with the standard I was lucky to get 17. Typically it was 15, must have been a problem with my right foot. Now I get 13-14 with the beast.

 

short beds get 25 gallon tanks.
long beds get 30 gallon tanks.
no matter the size of engine.
i get around 15 mph with 95% city driving.

 

I have a 99 with manual tranny and reg cab>I get 13.5-14 in all city driving.

 

I have a 98 2 wheel drive and I get 22 hwy and 17 city...I also run 89 octane gas for my best results..I think this is pretty good considering i am a littl hard on the throttle if you know what I am saying.

 

I've got a 02 XL v6 and I'm lucky to pull 16mpg. I want to know how the heck he's getting 21mpg! Originally I was getting 18-20 but now that I have 36k miles it dropped down to 14-16. I do a lot of highway driving being I live in the country and the closest town is 20 miles away. Basically I have the same truck as mbuechler. It's a automatic as well.

 

He's not getting 21 mpg.

The 25 gallon tank (not 20-21) is 94.75 liters (lets just say 95) So the real result is 7.58 Km per L, which is just under 18 (17.9)mpg. Which is about right.

Ain't math cool?

 

badsparky said:Have you checked the codes? You could have an O2 sensor out - which would cause you to run 'rich' all the time. You may also have a clogged EGR valve, or some other easily fixed problem to restore your mileage.

My truck is a 99 XLT S/C 4.2l auto w/3.31 open. I get about 17 - 17.5 mpg travelling 500 highway miles each week. Of course, 'highway' driving doesn't always mean open road conditions in the greater Boston area! The only mod I've made to the engine is a K&N filter, which may have bosted performance, but not noticably.

When I towed my tent trailer this past summer, I got 16.7 mpg at 68 mph (using cruise control). Pedalling it on the way home at 70-75, I got 13.5 mpg! Never follow your buddy when he doesn't use his cruise control!!

I have seen 19mpg at 60mph with no traffic - but that's rare!

 

Oh I get the math, I'm not stupid. I was just stating the fact that my truck has dropped 4mpg since I got around 30k miles on it. I typically get 360 miles to a tank and I fill up 23 gallons. So thats roughly 16mpg. I travel a lot of interstate and highways wherever I go so something isn't quite right.