Aux diesel tank in bed question...
I purchased a 2008 Silverado and it already had a 74 gallon aux tank in the bed hooked up to the fill pipe of the main tank. I sold the 74 gallon tank and purchased a smaller 37 gallon but was told no...
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I have plumbed the same way except I leave the valve closed , when the gauge on dash gets low I open the valve and let gravity fill the main tank , If I forget and leave it open , nuttin happens ! Of course me and mickey mouse have only been doing it for fourteen years with no mishaps . Myself I would be afraid of electric pumps and automatic******, manual works for me .
