Re: Buying a diesel truck

Posted by Ron in OH on May 23, 2007 at 19:28:11 from (67.54.206.16):

In Reply to: Buying a diesel truck posted by Lincoln on May 23, 2007 at 16:49:16:

I have two Duramax units - an 05 GMC 2500 and a 06 Chev 3500. I recently sold a Dodge 2500 diesel with 238,000 on it with no problems. This truck got great mileage - 26 + empty cruising the Interstate. Average 20 pulling a gosseneck round trip one way loaded and back empty. The problem with the Dodge is the tranny. I was lucky I rebuilt the automatic at 150,000 and never touched it again. The GM's I now have are performing very well with the Allison. The 05 has the five speed and the 06 is a six speed with a manual lock in which is nice when pulling loads. Both these trucks do very well and they have the power train to move along. The 05 is equipped with a computer read-out on mileage. To get the best mileage keep the rpm's at 1500 and you will do pretty good. If I'm on the Interstate and cruising at 70 (empty) this truck will hang around 16 - 17, if I back off to 55 it'll get 22 - 23. I can pay myself to drive slower. When loaded I see the same differences. I have checked this with my calculator and the computer is pretty close. The 06 with the six speed will run about 300 rpm less at same speeds as the 05.
The one ton is much better to tow with but the ride in the 2500 empty is better. I have towed heavy loads with the 2500. The 2500 truck and trailer combo with a New Holland 190 skid laoder and attachments hit the scales at around 19,800. Since I now have the 3500 06 it does a much better job at trailering. Good luck on your purchase.

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