I doubt that rule holds up under much scrutiny. On trips I sometimes
pull a 900lb trailer in addition to loading up my 87 Syncro Camper by
almost as much inside. Still gets about 17 mpg, even with an extra 1500
lbs, not the 2 mpg the rule would indicate. Other factors are much more
important, namely speed. When loaded down and towing I drive slower and
at a more constant speed, except up hills of course.

Mark

Jim Felder wrote:

> I've heard rule of thumb of one mile per gallon per 100 pounds, for
> what rules of thumb are worth.
>
> Jim
>
> On Aug 15, 2005, at 9:46 PM, P. Stanhope wrote:
>
>> Or 500 pounds?  I have a westy that my pack-rat brain
>> LOVES to stuff full of heavy tools and junk. My westy
>> weighs alot already, just wondering what would happen
>> if i ditched two 10" woofers inside partical wood
>> speaker boxes. The speakerboxes take up space and
>> theives love them.
>>
>> Phil 84' Westy Tiico'ed
>>
>>
>>
>>
>>
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>