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  #31  
Old 08-18-2003, 07:49 PM
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Never seen 22mpg with my truck. I know what you mean about the exaggerations though. I've seen some numbers quoted for MB on this forum that I can't come close to matching.

You know, altitude probably affects mileage also. I wonder if you would see a little better mileage at sea level compared to NM? I know horsepower increases at lower altitude, I would assume that mileage would also.
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  #32  
Old 08-19-2003, 02:00 AM
Diesel Power
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I wouldn't be so quick to question those who post high numbers. I have pulled 23.7 mpg out of my Dodge truck, running empty. I have to WORK for those numbers.

How I do it is this:

On US highways where I must slow down and speed up entering and leaving small towns. I pay attention to the signs indicating slower speeds ahead. I immediately begin coasting, allowing rolling resistance to scrub off speed. I am basically getting sizeable distances with the fuel pretty much shut off. As I leave a town, or accelerate from a light, I will do what is called progressive shifting. Those who have driven trucks know what this is. I shift VERY low RPM, a bit higher RPM in each higher gear before shifting, and keep the throttle VERY light, adding more only as needed to maintain a modest level of acceleration. I also cap my speed to a MAXIMUM of 65 mph. If the speed limit is lower, I follow that number. I also use the cruise control religiously.
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  #33  
Old 08-25-2003, 07:45 PM
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Not quite a truck but ..

I'm considering a 1997 Chevy Tahoe 2dr
with the 6.5 diesel option ..
Vehicle has about 60,000 miles ..

Is this worth further inspection or
is this the engine to avoid ??

rwthomas ?? Warden ??

TIA

Jim in Ct ..
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  #34  
Old 08-25-2003, 08:11 PM
Diesel Power
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The only serious issue with the 6.5L GM diesels is the fuel pump. GM has had a very tough time getting a pump in them that will last the long haul. A word of warning is that those pumps are VERY expensive!!!! Provided that you aren't going to be towing a whole lot, the engine itself is fine for lugging the Tahoe around. At 60K, you should still get another 80 to 100k out of it before having to worry about internals. Otherwise you will have your typical Chevy rattletrap with it's flakey grounds, and super cheesey plastics that don't like to stay together.

Sorry I seem so dismal on the marque, but I've had a 1/2 ton truck of that design era, and I'll never put another chevy truck in my driveway again.
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  #35  
Old 08-26-2003, 01:21 AM
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I have a 94 Ford Ranger 4X4. The engine is pretty shot. I have been thinking of adapting a 617 turbo diesel to fit. Between my fabrication experience and my neighbor's machine shop, I think we can make this thing work. Imagine, a mid-size 4X4 diesel with plenty of torque and getting 25 mpg+.
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  #36  
Old 08-26-2003, 03:16 AM
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There's a guy on the MBZ.org listserv that did something sorta similar to that...he bolted up a mid-80's Nissan 4x4 chassis underneath an '82 300 td. Used the car's original OM617 and transmission with a very short fabricated driveshaft attached to the Nissan divorced transfer case. Front and rear suspensions are pure Nissan. From the pictures I've seen, I'd say he did an excellent job, though it's obviously not for everyone
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  #37  
Old 08-26-2003, 04:27 AM
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I suppose I could do it like Jesse James and try to get it done in 7 days....Nah, I would rather take my time and do it right. I realize it is going to take a lot of custom fabrication, but hey, It'll be fun and besides, If MBZ made a mid size 4x4 pickup that was halfway affordable, I wouldn't even think about it. Everything they make I don't think I would want to take elk hunting. Except of course the Unimog, but I can't afford one of those and I already have most of evrything I need to do this.. Time to break out the plasma cutter!!!
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  #38  
Old 08-26-2003, 09:28 AM
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Triffin!

Hey Jim,
You might want to check out http://www.62-65-dieselpage.com/ if you are interested in GM diesels. Most of the serious problems had been sorted out by 97 and they should also have the cooling upgrades already. The electronic pumps run about $800 if you can do it yourself. There are fixes and mods that help the longevity of the DS4 electronic pumps but I don't think I would want one unless I got a screaming deal on it. If you are interested in the truck then have the dealer run the history and see how many pumps have been in it. Also what vintage the pump is. The newest rev of the DS4 is supposed to have all the problems fixed. RT
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  #39  
Old 08-26-2003, 03:02 PM
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I don't think I would want one unless I got a screaming deal on it.


Hmmmm .. It's the 1997 2dr Tahoe .. LT trim ..
Blue ext/ grey int .. ( nice color combo ) ..
asking $15,500 with 60,000 miles .. not exactly
a screaming deal .. maybe I'll try
a trade with my 1996 e300d .. or not !!

Thanks rw ..

Jim in Ct ..
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