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Posted by MoparNorm on Thursday, April 03, 2008 at 01:18:29 :
In Reply to: Anybody done the math lately? posted by Bob in N. GA on Wednesday, April 02, 2008 at 21:02:53 :
On the DTA Forum a fellow has a 440 which gets 11 mpg, he asked about the 4bt, here is the math:
"The 4BT has better torque, 30 mpg and in some cases, the guys who have bought the bread vans from Dove Bid have sold the aluminum bodies, trans and other parts for a net gain, so the motor was "free" but there are other parts that need to be considered, when undertaking an engine conversion.
In addition, at a fuel economy difference of 11 vs 30, which is nearly 200% the payback should be very quick.
For every 1,000 miles driven the gasser needs 90 gallons, the diesel needs 33. At $3.50 for gas vs, $4.00 for diesel, that's $315 vs. $132, or $183 saved with diesel, every 1,000 miles.
That's $18,300 every 100,000 miles that you save using diesel. If the price of diesel gets down to where it should be, at or below gasoline, you would save over $20,000.
I think that could be qualified as a savings....= )"
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