Now that I'm no longer transporting, I fill my aux tank whenever I find a great price on diesel or we are going on a trip. Other than that, I just use the main tank for around town stuff. Hard to justify 2000 miles worth of diesel sitting in a tank if it's going to take several months to burn through it.
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Brent
2013 Alpine 3500RE
2019 Silverado 2500HD Duramax
U.S. Air Force Retired (25 yrs)
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