Fuel mileage of Diesel engines
I'm in the process of shopping for a used diesel pusher. Would appreciate input on the following: All things being equal GCVW, etc, is there a substantial difference in fuel mileage between a larger e...
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Diesel engines are actually rated at lbs/hp fuel consumption. You can get that rating from the manufacturer than back calculate how much fuel will be consumed based on the wt of the coach and the speed you're driving.
The kicker here is that diesel has a fairly wide density spec so the fuel alone will change the mpg by several percentage point with all else being equal. If you factor in winter blends of #1 and # 2 it gets even worse.
So....the upshot is that the HP rating of the engine makes little difference, how much of the HP you decide to use is the key factor.
The kicker here is that diesel has a fairly wide density spec so the fuel alone will change the mpg by several percentage point with all else being equal. If you factor in winter blends of #1 and # 2 it gets even worse.
So....the upshot is that the HP rating of the engine makes little difference, how much of the HP you decide to use is the key factor.
