My neighbor has a full size GMC pickup truck, with the extra door for passengers. He said it is the type that has a chip, and he got a special chip where he can change the horsepower the truck puts out. I think he said he can put in 70 HP, 90, 110, or 135 HP.

He has it set at 110 HP, and he has a special muffler for the truck too, that might help some.

Mind you, I talked to someone with a similar size gasoline truck just yesterday, who gets 7 mpg when towing a backhoe, and 10 when not towing, and maybe 12 on a good day on the hwy.

My neighbor's diesel truck gets....

are you ready for this........

24 mpg on the highway!!

That's amazing!!

He said when it was stock, he got about 17 mpg.

Could you imagine what my 1991 300d would give, if there were a way to tweak it? (though there's probably not much HP to play with on a car). If he can get that on a full size truck, and my stock MB gives 36 hwy, I'd probably get 55 mpg.

However, I was just wondering if your neighbor deals in any real horse manure

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Junqueyardjim
Christianity, if false, is of no importance, and if true, of infinite importance. The only thing it cannot be is moderately important. C.S. Lewis



1983 Mercedes W123 240D 4 Speed 285,000 on the road with a 617 turbo, beautiful butter yellow, license plate # 83 240D INDIANA

2003 Jaguar Type X, AWD. beautiful, good mileage,
Mom's car, but I won't let her drive it!

My dads V8 300+ horsepower 2003 chevy silverado gets 24 mpg highway. Premium or midgrade gas, taking good care of the truck, synthetic oil with a clean filter goes a long way it seems. Its stock everything too. Its in mint condition too

Gas engine? I call BS!

If he is honest he does not know how to calculate it or has a problem with his odometer.

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.

Same here....my father in law has a 5.9 liter gasser v8 dodge, he drives it mostly highway to work and back, and only gets around TEN to 12 mpg. I drive almost 3x as far as him every week in my commute in my SD, and I spend about $20 LESS in fuel.

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-diesel is not just a fuel, its a way of life-
'15 GLK250 Bluetec 118k - mine - (OC-123,800)
'17 Metris(VITO!) - 37k - wifes (OC-41k)
'09 Sprinter 3500 Winnebago View - 62k (OC - 67k)
'13 ML350 Bluetec - 95k - dad's (OC-98k)
'01 SL500 - 103k(km) - dad's (OC-110,000km)
'16 E400 4matic Sedan - 148k - Brothers (OC-155k)

I suppose it could in theory if driven at 55mph and had the suspension lowered to the ground with a tonneau cover on the bed in SWB form....

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1974 240D 3.0L 4(M) - 250K -OM617.910 + 300D FW + Rajay turbo power!
1977 6.9 3(A) - 84k

My 91' F700 gets between 11-12.5mpg with a 93' 12 valve cummins in it , 5spd Eaton transmission and 2spd rear axle. Weighs in at 19,500 lbs empty.

My friend just got a new duramax with all the emissions crap on it and averages 22mpg.

On the gas Chevy maybe a 4.8 but the 5.3 and 6 liter are thirsty engines. The older 350's where even worse. My TBI motor gets 12 when empty and about 6 when pulling something. Reliable as hell but really thirsty.

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Experience : what you receive 3 seconds after you really needed it !!



86 300SDL 387,000? Motor committed suicide
81 300SD 214,000 "new" 132,000 motor
83 300SD 212,000 parts car
83 300SD 147,000

91 F700 5.9 cummins 5spd eaton 298,000
66 AMC rambler American 2dr auto 108,000
95 Chevy 3/4 ton auto 160,000
03 Toyota 4runner 180,000 wifes

I will agree with him on the 24 based on a couple of things.
I had one and if the following was followed 24 was acheiveable.
65 mph.
Flat ground(IN,IL,OH type of flat)
All highway.
We took ours from nw pa to Watertown SD(1200 miles) running across the flat ground we got 22 at 72 mph. But if it was the 4x4 i would have to say no way. Dont forget that the gm trucks shut off 4 cyl when not needed.

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86 300SDL. 250,xxx on #14 Head. One eye always on temp gauge.. Cruising towards 300K

I had a client with a dodge diesel that stated that he could get 24mpg with his banks set up. Do understand that cost of the banks systems means that your really not going to safe any money on diesel, unless the price of diesel is $7.00 a gallon. LOL But it was nice to drive his truck around, because that truck had some major power.

http://bankspower.com/app/index/2

I hear you get the most out of the system if you get the package deal. Tuning, exhaust/intake and ram intake system.

I need to get off this website, I'm feeling I need to purchase a truck. MOST LOG OFF. MOST LOG OFF.

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Professional greasecar installer
Austin TX


98 Jetta TDI with grease car kit + veg-therm (totaled)
87 MB 300SDL running on B99 / greasecar kit + 30 fphe
www.austingreaseguys.com

heh, after reading this thread last night... I perused the cl ads for dodge trucks... made a few calls, and well, I think I am getting one... what the hell is wrong with me?

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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 560SL convertible
1987 190D 2.5-5SPEED!!!

1987 300TD
2005 Dodge Sprinter 2500 158"WB
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!

Incorrect ... I have personally had one of these trucks.... 2007 1500 silverado classic ext cab chev with 5.3 gas v8 and i consistently saw 22 mpg (19-20 city) over 3 years.... I am not the easiest person with my right foot so i can see that it is completely possible to achieve 24 mpg with that motor. Hypertech also makes a chip for that engine that is said to improve the economy even more! Mine was stock.

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1987 300D 180k
1985 300SD 330k Helga
1992 300D Lola 269k- Sold
1986 325 coupe Bessie >300k Original engine(ODO Broke) sold
2006 2500HD Druamax Linda- Tows boat and looks pretty in garage thats about it

24mpg sounds kinda high, my friend with a large Cummins truck (1998 Ram 2500)... mind you its the PPump, so its all mechanical, but he told me he is getting 17 on the highway. I thought it would get better then that. My dads 88 F350, that weighs 8500Lbs (full tool box and huge bumper) gets 14 on the highway, and hes got a Banks Turboed N/A 7.3L.

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I'd have to see it to believe it, but I don't seriously doubt him.
I'd think bumping the HP would downgrade the MPG's but who knows...

I have a 2001.5 Dodge 24 valve, 6 spd. 3500 Dually with the Cummins. I can get over 20 MPG. But, I have to be real light on the pedal with 900 ft. lbs. of torque on tap (several mods). Over 65 and it really drops because of the aerodynamics and tires (dually).

That is actually pretty believable. I have some friends that drive the D'max in different varieties. That is not an average. But he probably might get a tank or 2 with those MPG's. I have seen it. Not bad for a truck weighing in at over 7,000 lbs. Over time his average will drop if he is tracking every tank and "averaging all of them".

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AJ

1985 300D (SOLD)

I have a 2000 24 valve with 410 gears & a 5sp. Average since I've owned the truck has been 16. I get more in 5th gear with < 10# of boost. A chip and injectors would help perhaps 3 mpg. It takes a long time to make up the cost at the price of the hardware but that doesn't count the fun factor or an extra 100 hp. Truck is to haul, SD is comfort, Datsun Z is for fun. Really all are for fun.

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85SD 240K & stopped counting painted, putting bac together. 84SD 180,000. sold to a neighbor and member here but I forget his handle. The 84 is much improved from when I had it. 85TD beginning to repair to DD status. Lots of stuff to do.