Considering Trade from Gasser to Diesel
I have read a couple posts regarding the cost of maintenance nad/or repairs for late model diesel engines and am a bit concerned considering I am looking into trading my 09 GMC, 2500, 6.0L gasser for ...
Forum Discussion
transamz9 wrote:
Iv'e said it before, twice as many RPM's is going to be twice as much wear.
That is an overly broad assumption. When not pulling up a grade my truck with the gas V-8 ran at 1700 RPM at 65 MPH. My diesel truck with its V-8 at 65 MPH is at 1700 RPM. It is only when pulling a load up a steep grade that the gas V-8 needs more RPM's to generate an equal amount of torque.
It is common for people to get 200,000 miles use on gas and diesel engines so the possible extra wear from higher RPM's some of the time with a gas engine is clearly not affecting the reliability or longevity of the engine.
A lot of the problems people have when towing with gas engines comes from picking a vehicle with too tall a set of gears. With a 6-speed transmission and 4.10 or lower gearing a gas powered tow vehicle is not going to be a problem when used within its tow load capacity rating.
With GM trucks the same truck with the 4.10 gears has a towing capacity that is a full 25% greater than with 3.73 gears. I always have bought gas powered vehicles to be used for towing with the 4.10 gears and that was when 4-speed transmissions were the norm. With today's 6-speed transmissions with two overdrive gears this is even more of a no-brainer choice.
