Is this a device you're running on the road, or your PC. Assume it's coming from the OBDII connector? Looking for something similar for my OBDI, not holding my breath.

 

1987 4Runner Turbo, AT, 225/75R15s, 4.10s (according to firewall plate, but it's bone stock)Engine rebuilt (0.10 over), TEC turbo replaced the factory one, 2.5" exhaust out the back, new cat, new muffler, and what is supposed to be a Crane Stage II camAfter the DOA cam, and with larger 245/75R16sWith 285/75R16sWith 4.88sWith R151F

 

edeslaur,

Yes, sorry it is from my OBD-II scanner using the OBD-II to serial port interface & software from http://obddiagnostics.com. Unfortunately this does not work with OBD-I.

Regards,
BigMike

 

87 22RTE.

Stock tires and gears

21 mpg

 

I just bought a Toyota Tacoma 4 cyl, 5 speed manual. After 2 tanks of gas, driving on back roads 85% of the time (lots of stop signs, some gravel, hills and corners) I am getting around 24 MPG. I don't know what it is on the open road yet. The speedometer is a little slow because of over sized tires (30x9.50-15)

I checked the odometer today for a 32 mile drive and it looks like it is lagging behind about 1.6%. The axle code on the door jamb says I have 3.58 gearing. I did the 20 tire revolutions and counted the drive line revolutions and divided by 10. It is 3.58's alright.

First tank was 349 miles and 14.9 gals of gas. 350 x 1.6% = 355.6 / 15 = 23.71 MPG. The numbers on the second tank are coming in close to the first.

I was hoping to get around 19 MPG on the back roads. I get 24 ?????????? WOW.

The 30 in dia. tires and the 3.58 gearing is to high. It works but take-offs could be a little smoother and a little less clutch. I've not been off road on steep ground, but I have 4wd low so I don't see a problem, unless it's extra wear on the clutch.

The door jamb says the stock tires are supposed to be 225/75-15's, but the stock rims which are supposed to be 6x15 are 7x15. If I were to put 225/75s on, it looks like I would be reading way to fast on the speedometer. I'm going to see if I can find a tire with about a 29.5 diameter which I hope will give me the most correct speedometer reading.

If I went to the 225/75-15, which is a 28.28 dia. tire it might feel like a little more power, although the power is not bad the way it is except right now 2000 RPMs @ 60 MPH on a hill has very little throttle response, but it's OK.

But its a 4 cyl. anyhow.

The speedometer would be off the other way with the smaller tires and I don't know what it would do to the MPG. I hate to mess with the MPG's. The gas saving ability of the little truck was why I bought it in the first place. I'm not much of a 4 wheeler any more and I don't have a lot of places to go 4 wheelin' anymore anyway.

I'm still looking for some mistake I've made that tells me I'm not getting 24 MPG but I've looked a lot and don't think I'm going to find it.

I'm happy as hell.

 

after i did the diesel swap, G52, OM617.951, 4.10's, 32's

I avg'd 32.3MPG. Suck on that, Prius lovers!

 

after i did the diesel swap, G52, OM617.951, 4.10's, 32's

I avg'd 32.3MPG. Suck on that, Prius lovers!

I love those diesel numbers. With 4.10's and diesel power I doubt your shifting anywhere near as much as I am with a 4 cyl, gas and 3.58 gears either.

I watched a short clip on utube where Shade Tree Conversions makes claims of up to 45 MPG in full sized ford pickups with a Perkins deisel tractor engine. (same as my ford tractor) A Tundra that got 45 or even 35 or 30 would be great. I think it would be difficult to put a small Perkins in a Tacoma because of their overall height. (what a lot of lugging power though) Plus those engines are to expensive to try and prove out someone else claims unless you just happened to have the right stuff laying around and probably your own machine shop.

 

Should be looking at better numbers in the future since I will be tinkering more. Still has no exhaust and I expect gains of MPG from the supra afm, intake/battswap i gotta do with a REAL COLD air induction, amd I gots to put exhaust on this weekend.
BTW... It is NOT FLAT where i live...

**1985 4runner 22re 5 speed 4x4**

-80% tread 33x12.5x15 bfg m/t tires stick out frnt/rr about 2 inches with my axle/wheel setup. 4.10 gears. about 2" of lift or so on it...

-currently 1700 miles on Rebuilt motor, ground up, BY ME. .40 over pistons,decked. all parts on front end also new.
-ENGNBLDR RV head/ OS valves. LCEngineering Pro Street cam. has good bottom end AND WAKES UP at 3k and pulls HARD to 5k... i would imagine the power would feel more substantial and slightly different if i didn't have 4.10 gears. =D
-ALL new NGK OEM wires, CAP and rotor.
-NEWER model intake/TB swap. plumbd 2.75" all the way between AFM and TB. hole in side of airbox is cut out bigger and wire screened.
SOON to be my cool custom CAI (real FRESH air) with supra afm.
-EGR currently blocked off with plates. but still is connected. Gonna do an MPG test...
-Sunday I am fabbing a nice complete exhaust for it. but right now it has stock manifold and downpipe to cat. with 2.5"cat with 2 ft of pipe directing out the side before back tires. Hence why i bought all the exhaust parts and will make my own exhaust this weekend.

AND... What your all waiting for...
with all the numbers corrected... for tire size.....

19.6 MPG average over the last 1200 miles.... Driving fast slow... cruising the freeway at 70mph. revving in the new badazz powerband of 3000-4500 regularly to go up hills and get on the highway.. but this is my all around town and highway miles over the last 1200 miles all together also went offroading a few times. I get well over 300 miles out of a tank. .

With my new exhaust and the supra AFM battery intake swap with my cool FRESH air intake... I plan on creeping past 20mpg and closer to 21 in the next few tanks of gas here. ONLY time will tell. I will keep you all posted.

 

87 toyota 12 mpg 5inch lift on 33 with 22r bored .20 over.

 

Been doing more jetting on my weber32/36 and am getting a consistent 20mpg. A mix between town, back roads, and a little highway.

 

94 pickup 22re 5spd reg cab with 30" All Terrains. I driver 50/50 city hwy
21 mpg

 

The reason I wanted a small truck was to get better MPG to get where I'm going and I wanted a 4x4 for hunting, fishing, logging roads, etc when I got there. After reading posts on this forum (and doing a lot of other reading and talking to people) I thought Toyota sounded like the best "actual MPG" small truck on the market and the best truck.

Without this forum I probably would of ended up with a Ford Ranger.

I'm really glad I went with the Toyota and this forum helped a lot to make that decision.

This is a great place to read about all the gimmicky stuff that doesn't work and the stuff that does work too.

19.6 MPG average and climbing is great.

 

94 xtra cab 4x4. 22re/5-speed. 33x10.50s and 4.88s and Detroit locker. Otherwise stock. Pretty consistent 20mpg.

 

drove from Riverside to Los Angeles, CA. round trip, light hwy traffic, 65-70 mph, averaged about 19 mpg while using ECT. Rebuilt top end 3vze about 5 months ago.

 

Do you have an idea of what this truck got before the big tires and lower gears????

 

When I bought it in 1999 it had 4.10s and 31x10.50s. That was about 100000 miles ago (has 172k now). IIRC it was about 20-21 adjusted for speedo error.

 

at last check, my 86 stock [except header] 4runner 22re 5spd was getting 19.5mpg, combined
the 89 4runner on 33s, 22re 5spd was at 18.3 a month ago and now 17.5

the majority of the driving is city though. so it's not too bad i suppose

 

Little Rock, Ar to Tulsa, Ok
290 miles
104 degrees
avg 70 mph
a/c on

92'
22re
36" tsl swampers
4.10 gears
spools front and rear

21mpg

 

84 extra cab
4"TG springs, high steer, stock 4:10 ratio. i just switched back to my 28.5''8.00 stock rims, looks dorky but little better mpg. 22r electric fuel pump. i need to get a pressure regulator just pumpin way to much. I get 9.6 mpg now. thats about 140 miles a tank.... the bunk

 

1990 4Runner 4x4 3.0 5speed with factory 31x10.50s (BFG ATs, and I hate them) .

Most of my driving is stop and go 38mph city driving, and in-town I regularly see about exactly 15mpg. I usually upshift at 2300-2700rpm, and cruise at 1500-1700rpm in whatever gear puts me there.

Open-road highway driving on relatively level ground puts me at 20-23mpg pretty consistently.

I generally leave plenty in the tank, and fill up at 180 miles in town, and 225 or so on the highway.

For what it's worth, truck is geared 4.56 from Japan. 240,000 miles on everything but a motor rebuilt 40k ago, and a new front end as of 3 days ago. 87 octane fuel only (that's the regular grade out here).