I have a 1999 s-10 extended cab v6 4.3 vin x, automatic trans. Wondering how many in town miles and highway miles you guys get per gallon? I currently get about 250-280 miles on a full tank which is a 19.5 gallon tank. That is mostly in town driving.

Thanks

ill get between 220 and 260 to a tank, about 20mpg, and i drive it hard

City driving mileage varies from town to town depending on what the traffic is like when you drive, elevation, if there are hills, and a practicly endless list of varibles.

Your best bet for a fair comparison is talk to someone that you know drives a simular vehicle in your city at around the same time of the day as you.

For example if you talk to someone that has to drive in LA at the rush hour peak they'll be lucky to get 150 miles on a tank.

Tune it up

I have a 02 Crew Cab and I get 17 mpg. Thats in stop and go chicago suburb traffic. And when I cruz long distance I ave 22mpg. I its always been that way from the day I took it off the lot. Even put in a K&N air filter hoping it would change but it didn't . Anything I can to to increase it. I would love to here from you.

free flowing muffler.

Synthetic oil in the transfer case and differentials and the engine.

Syn oil in the engine.

Blazerlt's advice plus tonnu cover if you dont already have one, and from what i hear about 2 or 3 oz of acitone in your gas tank every complete fillup will help, going to go raid the shop tonight, if im thinking correctly, we have a 55gal. drum of the stuff, and if we do, a couple gallons is about to fall off the truck and ill let ya know what my results are with it

I have a cap on the truck already. Still stucks gas. How much of a difference will syn oil make? I wish I knew about that earlier. The truck is getting the rear diff seal replaced right now. I would have told them to put in Syn oil. Truck only has 80K I figured I would go Syn after 100K. I love this truck I have beat it up so many times and only minor repairs. Now that I am thinking about it I probally busted the seal in Canada on some very cool logging roads. I thought I was going to loose the boat I was pulling.

Your O2 sensor is due for replacement.

It could be wearing out.

I got 17.5mpg highway recently in my 89 4x4 with the 4.3. And Dang that front end adds ALOT of drag. There is one big hill around us, all of our other vehicles (2wd, never driven another 4x4 on it) gain about 10 mph down it, and I don't gain anything!

You have a brake dragging.

So drive it around for a little bit, then pull out the ole temputure gun and take some readings?

My '99 Sonoma gets about 320-330 miles to the tank. 4.3L, Automatic, extended cab, stepside, ZQ8 suspension, posi rear end. It's all stock other than a K+N intake system. Driving is pretty much mixed between city and freeway. Running the AC doesn't seem to change the mileage very much. I really don't drive it too hard, but occasionally I open it up to hear the roar from the intake system (which is worth the extra gas).

So drive it around for a little bit, then pull out the ole temputure gun and take some readings?

Yea, see if one disc or drum is hotter than the others.

Damn you guys all get better mileage than me.I'm getting like 10-12 mpg.That's with a 4.3 with about 10,000 mile on it,new O2 sensors,new fuel pump,new plugs and wires,cool air intake.I don't get it?

Extra weight means extra gas so make it light I have a 92 sonoma w the 4.3 vin z and I get 22 around town and 29 on th hwy I have the 5 speed and a 3.08 rear end the rear end makes a difference if you have a 3.42 or higher there goes your gas

Nether do I movin2, I know that you keep your truck tuned up.

The truth is that until I started using the acetone in my fuel trick I was only getting about 15 with a fully tuned freshly rebuilt 2.8L motor. I admit that it's still carburated, but that's still awful. My gearing is either 4/10 or 4/11 which sure doesn't help either

Now I'm getting about 25, using 2 ounces of acetone for every 10 gallons of gas.
I just popped a plug out today, to examine it, and I've never seen such a clean plug. I tried taking a photo to submit, but it was blurry.
It almost looks like I cleaned it in a wire wheel right out of the motor.

Hell I get just shy of 370 mile to a tank freeway and about 320 to a tank city. thats at 1,300ft elav. in 110 degree heat, tail gate up with tool boxes and ladder in the back BONE STOCK!! You guys make me feel alot better about this thing now!!

Just for your knowledge, keeping your tailgate up is better for drag than putting it down.

spark not hot enough?? stock zr or does it have more lift and/or bigger tires? 10 mpg is what my old fullsized truck gets, you should definetly look around for your problem, because 10 to 12 on a n/a 6 cyl. is horrable

spark not hot enough?? stock zr or does it have more lift and/or bigger tires? 10 mpg is what my old fullsized truck gets, you should definetly look around for your problem, because 10 to 12 on a n/a 6 cyl. is horrable
I agree my milelage sucks!I put a new coil on also.It's a stock ZR2 and I heard from a guy that bought a new ZR2(back in 98) and he got about the same shit milelage.My old boss bought a new regular S-10 with a 4.3 and he said that his mileage sucked untill he got around 10,000 mile on it.My milelage is a little better when on open road but that doesn't happen often.Where I work is like 2 miles at most away from home.I guess the 31's eat it up,the gas that is.

Mine holds 20 gallons, and I can get about 350 miles out of mine, although I used to be able to get over 400 if I drove with the windows up and the AC off. Mine has 191,000 miles on it, (had around 178,000 when I first got it), and most of those are highway miles. For some reason, it's come down a little bit since then... :confused:

I'm having the same unexplained problem with my '02 ZR2. I'll check out the brakes, cause everything else checks out ok. Even get better gas mileage on the highway towing a boat than in town (DC area)...Brad

I agree my milelage sucks!I put a new coil on also.It's a stock ZR2 and I heard from a guy that bought a new ZR2(back in 98) and he got about the same shit milelage.My old boss bought a new regular S-10 with a 4.3 and he said that his mileage sucked untill he got around 10,000 mile on it.My milelage is a little better when on open road but that doesn't happen often.Where I work is like 2 miles at most away from home.I guess the 31's eat it up,the gas that is.

Get that truck hooked up to a Tech2 and have the sensors monitored.

with the 31 in tire try changing the gears to 3.73 thats the equal of 3.08 on stock

with the 31 in tire try changing the gears to 3.73 thats the equal of 3.08 on stock
No gear change,not getting into that because the front would then need changed.

Their pricy, but a gear vendors over/underdrive unit will gear it better, and increase the value of your truck.
They're basicly like the gear spliters for big trucks

I have a 2002 4.3 auto and only get 17.5-19.5 mainly city driving. My truck has a throttle body spaccer by airaid, K&N filter, bed cover, and I'm running mobil 1 5w-30. None of the money i have wasted on all of this crap seems to have helped with mileage. My s-10 only has about 43000 miles on it too! I beleve that this is the type of mileage these things are supposed to get. My dad's 2003 gets 24mpg highway is he keeps it under 65mph.

What I don't understand is why 2 basicly identacle trucks in basicly the same condition and tune get such different mileage.

It would be intresting to ask the same question in the Dakota forum, and the ranger forum. See if they vary as much

Get that truck hooked up to a Tech2 and have the sensors monitored.
Is the Tech2 used at dealerships?

I have also changed tires,that could be the kicker????They are Cooper tires with big lugs and these tires are quite heavy too.

not by 8 miles to the gallon from most other trucks

Yip, something is not computing here.

good suggestion for you is may get a power programer so you can tweak the ecm just read about it in another forum and thought i would pass it on

the only problem with that is that he may get better gas mileage somewhat, but then its not fixing his ligit. problem, at best the 400 doller programmer would mask it for a while