Are large gas motor Rv's underpower?
At the risk of getting someone angry for me asking the same question they don't want to see again, that no doubt some people feel has been discussed enough. Are gas Class A's underpowered to tow a...
Forum Discussion
the bear II wrote:
Gas vs diesel power boils down to torque.
The same sized basic gas engine will have less torque than the same sized basic diesel engine.
Torque equals pulling power.
My 300hp Duramax Diesel provides over 600lbs of torque. It's a lot smaller than the old gas 7.4L (454 cu inch) I had before. The 7.4L Gasser put out about 390lbs of torque.
The diesel pulls a 6% grade at nearly 20MPH faster than the old 7.4L gasser. RVs are identical in weight and size.
I don't believe your 5th trailer and pick-ups are a good comparison since the OP asked about Class A coaches. In any case, both pick-ups DID make it up the hill.
