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Old 08-26-2012, 08:41 AM   #11 (permalink)
oil pan 4
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Location: NewMexico (USA)
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Sub - '84 Chevy Diesel Suburban C10
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90 day: 19.5 mpg (US)

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My diesel suburban got 22mpg in factory configuration, unloaded.
Gas suburbans got closer to 14mpg

With my modifications I hit 20 to 22 mpg towing now.

If diesel is $4/gal that costs 18 cents per mile.
If gas is $3.50/gal thats 25 cents a mile.
And the gas to diesel price difference is almost never more than 50 cents difference, you would have to shop around for the lowest gas and highest diesel at different stations to find that price difference.
So how is diesel fuel more expensive?
Dont tell my you only looked at cost per gallon and stopped there.

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1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
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thomason2wheels (08-26-2012)