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Old 02-24-2016, 12:28 PM   #3 (permalink)
EcoModding Lurker
Join Date: Dec 2009
Location: Sunny Arizona
Posts: 53
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With the second tank you can buy fuel when it is cheap, and not need to buy it again for a long time. Gas in Tempe is $1.36 now, if Diesel gets down there, I'll fill both tanks. Or if you are traveling, you can go ~1,000 miles between fill-ups.
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