What's your 4.3 gas mileage???

[Badco]

I'm curious to know how much everyone else's 4.3 s10/noma drinks. What's your mileage like on a typical commute (interstate and in-town) when not punching the gas at every redlight or hauling tail down the fast lane on the highway (let's say over 70 is hauling it).
I normally get around 70miles plus or minus the first quarter tank and by the time I need to fill up I have aroud 270-280 on the tripodometer. I do both interstate and in-town travel to and from work.

What's everyone else getting?

[Joker2040]

in the jetta i get... well nevermind... I'll stop there... just for you Tommy

[Sparky2263]

http://www.s10planet.com/forum/showthread.php?t=3704&highlight=fuel+mileage

I got between 12-18 depending on how I drove it.

[Badco]

Search functions....a wonderful thing if I actually would use it! :rolleyes:

[Tink]

Well, since I never chimed in on that first thread, we get on average 18-19 mpg with the 4wd Blazer - that is TBI, auto w/ over 200K, lifted turning 30" mud tires. This last tank - 20 mpg. I'm super anxious to see how my 2wd Blazer does!

[rat]

20-26mpg. The low side in the city, and the high side if i keep the speeds around 55-60mph.

[j894]

Average for combined highway and city was 18.5mpg, with the occational right foot stretch. Thats when I was driving a couple hundred miles per week. Now Im done with school, so I havnt been traveling as much. Weird I was used to having my take every 4 or 5 days. Now I've been driving for almost 2 weeks and I'm just under half a tank now.

Anyway, best I ever got was about 27mpg (that Im sure of), with granny driving, staying at the speed limits & taking my time. I went 53.6 miles on 1.9x gallon. The pump kicked off 2 or 3 times before it was at 1.9gal. At first it kicked off at 1.7 so go figure. Wasnt all that long ago. Have to take a longer highway trip to get a consistant average.

This is on a '01 5sp 4x4, fully tuned up.

[20Xtreme02]

I'm averaging 22 in my Blazer. I spend about 3/4 of my time on the freeway at 60 MPH and the rest around town. The mileage has gone up since buying the dime due to the mods performed. It started out in the upper 19 MPG range.

[indigo s10]

I drive almost all interstate, at 75 mph, and I usually get around 20. I've got to fill up tomorrow, so I'll check it then. It should be a good all around avg. since I have done every kind of driving possible(granny, city, interstate, and a little light to light drag against my wife in her Malibu, which I completely smoked) so we'll see.

[indigo s10]

Well, I filled up yesterday. 326 miles on 16 gallons=20.3 miles per gallon. I even had a few wide open trips here and there. I just wish I got 30 mpg like my wife's Malibu.

[ZR1-S10]

I started off at 18mpg and after my mods I'm at about 21mpg.

[4lowlife]

18.1 mpg for the past year. I live in the rural area. Some bolt ons that may have contributed; K&N FIPK, Husky oil catch can, aftermarket MAF, TB spacer, 75 series tires.... staying away from reservation fuel....I have the EGR mod reamed at a 1/4 now.

[jjwalker]

Bah, my 2.8 of doom gets 13 MPG.

[Sparky2263]

Bah, my 2.8 of doom gets 13 MPG.

That's due to the weight of your right foot.

;)

[droopy89]

Im gettin about 19.5 or so in the city, with a little interstate, but it does have a better breathing exhaust.

[Sparky2263]

I set a new record with the Blazer after re-wiring from the fire. 18.3 mpg. I put it back to stock as much as possible. I get a lot of knock sensor activity now which means I'm pretty much pegged as far as I can go with the timing. No sense maxing the knock retard as that would most likely reduce mpg. That's with 235/60's on the back and 3.73 gears. I think the best I ever got with the 4.10's was 17.5

I sure miss those 4.10's though.........:D

[bosco_108]

I got about 18-19 in city and way better on hwy. I got 372 miles to the tank on a trip to the UP last year and with the ad ons im sure its betta now

[Hammer Head]

I think it's all the ethonal they dump in the gas to make more money but I'm only seeing 250 - 280 on 16-17 gals. I guess if I wanna see better gas mileage I should find another Miata I got 447 miles, hwy, on the small 10 gal tank.

[rentedmule]

Towing a 2500lb trailer 5400 kms across canada I averaged 17 mpg. lowest during that time was 15 (mountains and AC running) and highest was 20 (flat ground and no AC).

[bosco_108]

Just find a nice Metro with a 3cyl. 1.0l big block. That gets what 50miles to the thimble?:eyebrows_

[nomaboy]

are you guys ready...
16 gallons= 160 miles
thats 10 MPG for those of you that failed math
i do a lot of "balls to the walls" driving....probably why i only drive it on the weekends

[Sparky2263]

Towing a 2500lb trailer 5400 kms across canada I averaged 17 mpg. lowest during that time was 15 (mountains and AC running) and highest was 20 (flat ground and no AC).

Bull....

[Maximus]

Yeah no **** I call bull.there is no way even with the torque a 4.3 puts out are you gonna get that kind of mileage towing that much.I get decent mileage and when I tow my boat even on the open road I don't get that kind of mileage even with a tranny cooler to keep the fluid cool I can't get close to that.

[droopy89]

Yeah, but i just filled up and i averaged 16 and change, so i guess that's ok. But I was having a little fun with it.

[extreme gmc]

i try to keep my foot out of it and i average 20-21...

[bigstick83]

i get 18mpg w 4:10 gears

[Maximus]

I get 30MPG when I take two of the sparkplug wires off.Then I get 4 banger power and economy oh yeah lol!!!

[rentedmule]

Bull....

whatever, i didn't post that to brag and frankly i don't care what you think. i have almost $1000 (canadian) in gas reciepts and odometer recordings to back it up. truck has 3.42 rear end, highrise cap and was towing 5x10' double axle u-haul trailer. I couldn't find postings for highway mileage while towing a trailer so I thought i'd try to be helpful and put up my #'s. I was also a bit surprised at the milage as I normally get 18.5-19 mpg with easy, in town driving.

[droopy89]

I get 30MPG when I take two of the sparkplug wires off.Then I get 4 banger power and economy oh yeah lol!!!

R u being serious? Cause that is almost believeable

[Sparky2263]

He's definitely NOT being serious.

[Joker2040]

whatever, i didn't post that to brag and frankly i don't care what you think.

Woah now... ease up lil' buddy. Don't get worked up because someone on the internet doesn't believe what you say. EVERYONE is open to their open. Just because one person calls bull doesn't mean it's a personal stab towards you. They are just acknowledging what you said and letting you know that they don't believe it. You have this same right just as they do.

So when this happens you have 2 choices:
A) Brush it off and don't worry about it because you know the truth.
B) Prove it to that person(s).

If you can't do option 'B' then you have to live with option 'A'. That's life.

[rentedmule]

lol! don't worry, i wasn't offended or pissed off. just saying that I have the evidence to back it up (option B) and no reason to brag. peace!

[Maximus]

Im really gonna have to make sure it's obvious when I am joking.DO NOT take two of your plug wires off unless you want problems lol.

[nomaboy]

hey maximus, it works in theory:)_

[j894]

yeah, if you somehow stopped the fuel from going into the cylinders. lol

would probably shake like hell

[Hammer Head]

take the rocker arms off...

[j894]

now that would be convenient

[BigB93]

well when i was only firing 4 cylinders, my radiator was busted, my water pump leaked, my ignition was off, my starter was goin bad, my alternator was shot, my distributor cap was corroded, my spark plugs were grimey, and the spark plug wires were arching, I got 10-12 mpg :) I WIN!!! (now i get 20)

[nomaboy]

^^
boy you really musta pissed your truck off.

[BigB93]

haha yea... thats called ignoring a large **curplunk** sound, but hey it only did it once!!

[bosco_108]

Once is all it takes. Shouldnt have pissed her off. lol

[Red Rocket]

I get 20 city driving with a CAI and 3 chamber Flowmaster and a throttle body blade w/ no "restrictor". This is with rockin 18" blingers.

Just turned 67K.

[6000nasty]

wow, mine sucks. this last tank, i had a can of seafoam in it, babied the driving, no hard braking or sudden accelerations, mid grade shell gas, and i got 230ish miles outta 3/4 of tank. gonna tune up next week though

[boxcarracer963]

i can get 24-25 on the freeway and about 17-19 city with my foot out of it

[chevybrat]

wow...hahaha....my mileage is kinda scary in comparisson. I did a full freeway trip and got 21mpg...Short City Driving I get between 11-14mpg...Longer City Driving 14-15mpg...and a mix of freeway and city driving, 14-17mpg...

Just got a tune up. Truck is an auto 4.3l with 44k miles on it. Have the CAI, Aftermarket custom exhaust, new muffler. I do have a ZR2 though with bigger tires and i've heard it can affect gas mileage...idk. haha...

Just moved a little further away from work and also got an alignment so i'll start keeping track of mileage now that my truck actually has a chance to warm up before I get to work.

[boxcarracer963]

my city mpg dropped when i got my 30" all terrains but my highway mpg got a little better

[Tink]

Haven't posted what my other 4.3Ls get... As I posted before, the 91 TBI (top-end rebuild, edlebrock total power package, auto, 220K and lifted turning 30" mud tires) gets 19 mpg. The 00 BlaZeR2 (stock) gets 21 mpg and the 92 4 door (CPI, also stock) gets 23 mpg. These are all averages for my commute - 85-90% highway.

[Slaymanic]

Pre 20"s I got close to 15mpg city and 21 mpg hwy
Post 20"s 11 - 13 mpg city haven't done any road trips with the dubs yet but will in dec then we shall see how much it hurts me on the hwy

[Orangepeel]

I must be doing something wrong the best i can get is 17MPG and that's babying it. those headers and exhaust and forced air keep looking better all the time.

[Mikz86TA]

Round 20MPG lately. But it suffers when the right foot gets heavy

[ArticWolf]

About 18 to 20 on the highway. Delivering newspapers is hurting the mileage quite a bit. Doing papers it get's about 12 to 15 mpg

[bespurcell]

I get 25 driving like a grandma and 20-21 driving like me[mostly highway driving]

[98'S-Dime]

lol well seeing as i drive 70-80 everywhere and about 40-45 in town.. pretty poor. i average about 16 :(

[Jay-Sliver]

on average, on the hwy I get around 21mpg, and in the city i get about 16mpg....I have 130,000Kms (yes, KILOMETERS, im canadain) on my 2005 GMC Jimmy

[SONOMA SS]

18 to 22... depends if its city or hwy.

[chevybrat]

I filled up yesterday and my average was 13.5 city/hwy mix :mad:

[Mikz86TA]

99.9MPG according to the overhead computer display. I was in 5th, on the Interstate, cruising with my foot off the gas and downhill. Now, if I can just coast everywhere I am set =)

[Bone Crusher]

hahaha....we could always cut a hole in the floor board and you can start Fred Flintstoning it around

[rrowanj]

Ok, guys, stock S-10, 2000 Blazer, 168 k miles, 11-12 city, 15.5 highway. My wife puts her foot in it and can get 17. I can only get the 15. Threating to put in a V-8.

[Bone Crusher]

im still getting 18-19 city and 22-23 highway

[TreasonAgainstCaesar]

About 15 with city/highway mix. Definitely went down after the lift and tires.

[chevybrat]

Yeh i'm sure the fact that I have a ZR2 with the what, 2-3" factory lift and 31x10.5 tires doesn't help the gas mileage. Though I do have CAI, tonneau cover, and 2.5" single in 2.25" dual out with a delta flow 44 muffler...thought it would at least improve a little bit. Oh well. As somebody on here once said, don't spend a dollar to save a dime... At least all the mods to my truck are mods I wanted regardless of improving gas mileage.

[TreasonAgainstCaesar]

Heather, what pressure do you run your tires at? I've been running mine at 42psi. I first ran them at 35psi, but they looked to bulge a little at the bottom. The reason I ask is that I thought I saw a door sticker for a ZR2 that said recommended was 30psi, and that seemed really low.

[chevybrat]

32psi I believe. I also notice a bulge at the bottom. I don't know much about tires and tire pressure though...yes i'm sheltered but willing and eager to learn!

[j894]

getting between 16-18 mixed lately.
I wish I could keep my foot out of it. hahaha

[TreasonAgainstCaesar]

32psi I believe. I also notice a bulge at the bottom. I don't know much about tires and tire pressure though...yes i'm sheltered but willing and eager to learn!

The more you inflate your tires the rougher the ride will be, but it will also be more responsive. Now is it enough to notice a difference on either of those factors? Maybe or maybe not. But it's also supposed to be the firmer the tires, the better the gas mileage. Once again, it's going to vary from one vehicle to another and one tire to another on how much difference it makes.

The bulge on my tires looked kinda unhealthy, and I wasn't the only one to think that. So I pumped them up to 42. I was hoping my gas mileage would improve a little, but I don't really think it did.

Honestly, I don't know that much either. I just try to correctly repeat what I've heard when I tell someone else ;) :D

[chevybrat]

Well thanks for the information. I appreciate it. I will ask around and try to gather a little info of my own and go from there. Thx again.

[minus665]

i keep my tires, bfg a/t, on my 4x4 not zr2 at 32 psi. going on and off road, lowering the psi for off road depending on condition, and they stay perfect. i have 30,000 miles on them figure about 30,000 more. if your tires are bulging check your allignment and try not to turn too sharp, had that problem with my old car.

[TreasonAgainstCaesar]

I only had an alignment about 4k miles ago, so I should be good there. They look better since I've put more air in them. Mine have the max load rated at 50psi cold, so I think 42psi should be fine.

Where do you off road? I need something closer than Silver Lake and something that is open later than the end of October.

[chevybrat]

I had an alignment like 100 miles ago lol. Doubt that's it.

[Blazer69]

18 in the city 20 mixed driving and like 23 on the hwy....167k stock motor

[SlowDriver]

From the day I drove it off the lot new, My 97 4.3 has gotten about 17mpg (280 to the tank). Didn't matter if I drove it hard or soft, highway or city.

Recently I tested it to see what I could get out of it. I drove it sooo slow. Slow enough people honked and showed me their finger. Managed to get 21mpg (350 to the tank).

For a long time I thought I just got a thirsty truck, but seeing other's posts, I suppose I'm just an average Joe. Doesn't make me feel any better, unfortunately. :(

[chevybrat]

I caclulated my mileage today as i've been doin about 50-50 city/hwy for a tanks worth of gas and I got 16mpg.

[4runnerchevy]

1992 Vortec gets 0 miles to the gal., cause it just sits, and sits!

[Black Knight]

My 98 4.3L 5-speed gets 26 on the interstate at 75 mph with the AC on. I just got an alignment and new tires. Havent checked it yet. I do great on the interstate, im not sure what I get driving around town.

[bespurcell]

My 98 4.3L 5-speed gets 26 on the interstate at 75 mph with the AC on. I just got an alignment and new tires. Havent checked it yet. I do great on the interstate, im not sure what I get driving around town.

That sounds about right. My cousin had a truck just like yours and we got 28 mpg on a trip to Indiana driving 70-75.

[Black Knight]

That sounds about right. My cousin had a truck just like yours and we got 28 mpg on a trip to Indiana driving 70-75.
It jumped up too. I added the CAI and It only takes a 1/4-1/2 tank to drive from school to home on the weekends. Usually takes 1/2. I need to calculate the exact mileage.

[csl2006]

03 s10 118k miles, k&n, exhaust and chip= 18 in town 21 hwy =/

[Slacker1357]

average mpg is 15-16mpg and best mpg I've gotten is 18mpg for my '01 blaZeR2

[shipper]

Average 15-15.5. On the freeway at 75-80 mph, 19mpg. If I lock-in, sudden drop to 12. But for a 4x4 with perf up-grades and 30" mudders, I'm ok with that. Plus, it's pretty gutty.

[OrlandoXtreme]

Well my 94 TBI I notice about 20 mpg now with my 01 Xtreme 4.3 I see about 15-18 Mpg does this sound about rite? I figure with the extra horsey's on the X the gas would be burnin a lil quicker vs. a 2bl TBI unit

[BigB93]

Dam, I started this thread a longggg time ago. I cant believe its still alive. along with what has a 4.3 liter truck killed.

[Opticon]

it takes me 50 dollars to fill up at 3.00 dollars a gal and i get 60 miles to a quarter tank and around 280-300 miles per tank. i have a 4.3 vortec "W" in my 94 blazer 2wd

[csl2006]

I never let my tank hit below 1/4 tank heard thats bad on the fuel pump to run it empty. At about 3.00$ average for 93 octane it costs me 30-35$ each week from little over half a tank

[White-V-6-S-Ten]

If i drive on the highway i can get about 310 to a tank but around town its more like 280 and thats with out the custom tune i just got I havent had much time with it so i havent been able to find out mileage.
I also am using 93 octane

[Y NI Rider]

I use 60 bucks gas just to go to work. Not shur on weekends.

[SCredneck]

Average 23.7 over the last four tanks. This is trying to behave myself in a truck with 257,000 miles on it.

[kenheehn3]

I have a 97 4.3 s10 and my gas gauge does not work, but when I get gas I drive 300 miles then drive another 300 then reset the trip, and I am getting around 23, but that is during the summer, and I live in northern minnesota so letting my truck warm up doesn't help at all.

[bespurcell]

After changing my 170 t-stat back to stock I picked up a solid 1 mpg. 25 mpg total. Every little bit helps since I commute 120 miles a day round trip.

[Kilroy]

Just find a nice Metro with a 3cyl. 1.0l big block. That gets what 50miles to the thimble?:eyebrows_

I drove one from the west coast to Nashville and it cost only $133. bucks in gas. I wish my dime would do the same, but that's a wet dream.

[Jay-Sliver]

I have been doing a lot of city driving lately, but im getting about 15mpg...on the highway I gat usually around 20-21mpg..
My right foot seems to weigh more than my left foot in the city...im from the country, my truck is loud, I like to make noise..what can I say?

[Kx250fracer]

I GET ABOUT 14-18 WITH MOSTLY CITY DRIVING.

[9501S10S]

I was getting about 17.5 / 313 or so miles a tank, auto trans. That is about 80% highway with no A/C at all, mostly light footed. I do have fiberglass camper top that transitions to about 5 inches higher that the extended cab, but its very areo-dynamic. I did have a 170 thermostat, but I just changed it back to a 195. (had a hypertech 3 years ago but returned it) I just read earlier in the thread that someone gained another 1mpg that way.
I figured (and hope) that it was making the pcm think the engine was not warmed up yet, and running in a somewhat rich condition all the time, and will lean out and save some gas now! I did have some pulleys on and will put them back on soon. It looks like most eveybody is getting 16-18 mpg which is bad for a 6 cyl. I had a 1995 4.6l V8 Ford crown vic interceptor that blew the doors off my s10 and sot 19-21 mpg with A/C under the same conditions

[dechdalech1]

20-22 when i keep my foot out of it in town and like 25 on the highway

[chevybrat]

Last tank I got 16.5mpg with a mix of highway and city driving. I'd be happy about the change from 14mpg mostly city driving, but gas prices and the fact i've filled up twice in the past week is just too overwhelming at this point..

[csl2006]

my recent find was on a good day w/o me getting into it i get 17mpg. Joy riding i get anywhere from 13-15mpg

[menlowizard]

When everything is working right I get around 20 mpg. If i really baby it I can squeak 25 with mostly city driving...but then again, I can have a heavy foot... For the 3 weeks I did not have A/C I got almost 30 mpg babying it around the city.