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Thread: L5P: Auxiliary Fuel Tank
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Old 04-23-2019, 12:36 PM   #1 (permalink)
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Join Date: Mar 2008
Location: Edgar Springs, MO
Posts: 583

Auxiliary Fuel Tank

I tried searching for this, but to no avail.

I have a 60 gallon RDS fuel tank/tool box combo that I'd like to install in the bed and plumb into my fuel tank. I had heard that this could cause codes on the dual-tanked trucks due to the computer seeing fuel flowing into one tank but not leaving another.

I have a single tank setup on a 2019 3500, and according to the local dealer, this shouldn't cause a problem, but he was not 100% as they hadn't seen it yet.

Anyone out there have a tank rigged up to a new L5P, and how'd you plumb it in? Thanks!

2019 L5P Duramax - 3500HD All-Terrain SRW

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