[Chevy454]

Some numbers on my 2 trucks, per 1,000 miles (assuming diesel @ $4.30/gal & 16/10 mpg, gas @ $3.50 & 11/8 mpg):

<u>Unloaded</u>
Dmax: $268
8.1L: $318
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Dmax saves you $50 per 1,000 miles

<u>Loaded:</u>
Dmax: $430
8.1L: $437
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Dmax saves you $7.50 per 1,000 miles

Ironically, the more expensive fuel gets, the greater the savings will become with the Dmax (assuming the better mpg), but folks can't stand paying high-$4 to $5 per gallon of diesel, or having to pay well over $100 to fill it up...so they've been parking them!