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2.9L & 3.0L V6 Tech General discussion of 2.9L and 3.0L V6 Ford Ranger engines.

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Old 01-08-2011
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HELP! BAD GAS MILEAGE

I have a 2002 3.0 ext cab, 2wd with 32"x11.50" tires, k&n air intake, 4.10 gears. I'm only going about 250 miles on a tank of gas. I am wanting to take the stock muffler off and put a better one on. I'm deciding between a glasspack or a flowmaster 40 series? Which would be better? And what about spark plugs and wires. Is there any other minor modifications that would help get better mpg's?
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Old 01-08-2011
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Quote:
Originally Posted by Dixieoutlaw View Post
I have a 2002 3.0 ext cab, 2wd with 32"x11.50" tires, k&n air intake, 4.10 gears. I'm only going about 250 miles on a tank of gas. I am wanting to take the stock muffler off and put a better one on. I'm deciding between a glasspack or a flowmaster 40 series? Which would be better? And what about spark plugs and wires. Is there any other minor modifications that would help get better mpg's?
I've got the same setup and only get 200-210 a tank. be happy
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Old 01-08-2011
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Yeh thats around average..
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Old 01-08-2011
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What about if I added a electric fan? And how hard is it to do
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Old 01-08-2011
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Originally Posted by Dixieoutlaw View Post
What about if I added a electric fan? And how hard is it to do
gain of between 3%-5% increase.

its mostly driving habits.
I can almost push my ranger to 400mpt if I drive conservatively.
my best to date is 370 with roughly 2 gallons left at refill.
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Old 01-09-2011
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I was thinking of buying a hard bed cover can save 5-10% of gas also i cut my stock muffler and added a 22in cherry bomb maybe gave me a few MPG but the sound for a little 3.0 v6 is great.
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Old 01-09-2011
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Some times I get 300 miles to the tank, some times 220. It's all in the driving style.

or you can cover your truck in clay and cut dimples on it to give it a golf-like effect. Mythbusters guarantee an 11% gain in mpg. Looks like **** though, LOL
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Old 01-09-2011
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You really can expect a better MPG with that tire size. Spark Plugs/Cables??? Won't really make a significant difference.
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Old 01-09-2011
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Wirelessly posted

Bed cover will not help any.
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Old 01-09-2011
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I drive it very easy. I try not to have a heavy foot. I was just concerned because I had a 1994 f150 with a351w sitting on 38x15.50 tires and I wasnt getting much worse mpg than my ranger. This is the first ranger I have bought. I just figured it would get pretty decent gas mileage.
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Old 01-09-2011
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250 miles out of a tank is pretty good actually for most Rangers, especially with 32s. I can squeeze 300 out of mine driving like a little ol' lady at 55 mph on the highway without stopping, but definitely not if I have to go into town at all. I'd be happy with it. Slow down a little and do a tuneup, those are about the only two things that will realistically help. An E-fan does too, but only if you get it for the right price otherwise IMO it doesn't offset the fuel costs enough. LR
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Old 01-09-2011
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Wirelessly posted

Bed cover will not help any.
maybe if all you do is highway driving
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Old 01-09-2011
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i normally get around 230ish to the half tank during the summer, but during the winter, i get like 150ish to the half tank...
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Old 01-10-2011
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I've heard going from 3.73 gears to 4.10 damages gas mileage because it revs higher at speed. So i assume going from 4.10 to 3.73 will increase the gas mileage. Its a bit expensive and hard to install yourself, but in the long run it will help. You will also have an increased top end most likely but you will notice a decrease in how quick you accelerate when you punch it, but seeing as youre asking about gas mileage idt you would mind
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Old 01-10-2011
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Originally Posted by Sic'em Bears View Post
I've heard going from 3.73 gears to 4.10 damages gas mileage because it revs higher at speed. So i assume going from 4.10 to 3.73 will increase the gas mileage. Its a bit expensive and hard to install yourself, but in the long run it will help. You will also have an increased top end most likely but you will notice a decrease in how quick you accelerate when you punch it, but seeing as youre asking about gas mileage idt you would mind
he doesnt want to do that with a 3.0. 3.0 with 32s and 3.73s would even worse than 4.10s.
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Old 01-10-2011
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I get 18-20mpg and Im on 29s with an e-fan, under drive pulley and doing 70mph on the freeway. I do go back and forth from 2300ft to 1000ft every day though. 250 miles on 14-16 gallons aint bad...you gotta remember these trucks have TINY tanks...that F150 probably has a bigger tank too.
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Old 01-10-2011
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You're lucky. I get 200 miles per tank with 31s. Pretty much all city driving.
I drove down to the beach though and only got about 250 miles on the tank, all highway, no faster than about 65 trying to conserve gas.
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Old 01-10-2011
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OH man i didnt realize he had the 32's. pulleys would work too but that sacrifices a/c, F that, where i live thats honestly not a luxury. And i was getting horrible gas mileage so i took and replaced the coil pack, wires, and spark plugs, and put my truck on my gas saving mode on the programmer and i went from 16 mpg to 25 mpg highway. Totally worth it. It's amazing what a tune up does sometimes
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Old 01-11-2011
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The truck has a 19.5 gallon tank. Is a programmer worth it on my truck. what kind of gas mileage and horsepower gains are y'all getting
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Old 01-11-2011
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i get approximatly 13.6 miles to the gallon with my 89 2.3 5spd, with a 2inch flowmaster exaust W/no cat, K&N cold air intake, new boch ir fusion plugs with boch, new boch wires, i run fuel injector cleaner through it every oil change, and have cleaned out behind the EGR, the throttle body, and the EGR is disabled, everything works except the fuel guage, now the gas milage was already failing before i did any work to it, and continually got worse and worse, no matter what season it is, soo, any ideas?
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Old 01-11-2011
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oh and sorry i didn't realize that this was 3L tech until i already posted and scrolled to the top of the page, sorry for the confusion.
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Old 01-11-2011
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Tuners are good, but a little expensive - I was lucky enough to pick one up used, cheap. I noticed an increase of 2-3 miles per gallon when I switched over to the tuner.

With my current setup: 4.0L, 4x4, 5 speed with 4.10 gears and 33x12.5" tires and the tuner, my truck has been getting me 18-20 miles per gallon or about 300-340 miles per tank.

That reminds me, things like having a manual or automatic transmission and four wheel drive are big factors in what kind of mileage you can squeeze out as well.
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Old 01-11-2011
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Quote:
Originally Posted by Sic'em Bears View Post
OH man i didnt realize he had the 32's. pulleys would work too but that sacrifices a/c, F that, where i live thats honestly not a luxury. And i was getting horrible gas mileage so i took and replaced the coil pack, wires, and spark plugs, and put my truck on my gas saving mode on the programmer and i went from 16 mpg to 25 mpg highway. Totally worth it. It's amazing what a tune up does sometimes
Ive had 0 issues with my u/d crank pulley. AC still cools just as it did before. Dont think Ive seen a single complaint about loss of AC efficiency from people who've done pulley mod. Did you experience something like that or are you basing it off of what youve been told/heard?
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Old 01-11-2011
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I never had any A/C issues when I ran my underdrive pulley either.
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Old 01-11-2011
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you are getting more than 250 MPT if you havent had the speedometer calibrated. If the speedometer is 10% off, you are getting 275 miles per tank, if you put in 16 gallons that is 17.1 MPG. if you have an auto, that is damn good

I have 33's 4:10's a 3.0 and a 5-speed and i get about 18-20 mixed driving
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