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...
Forum Discussion
fj12ryder wrote:
Okay, now you got me curious.
Why doesn't the auxiliary tank drain into the main truck tank until the auxiliary tank is empty, when the valve is open? Seems like it would if the auxiliary tank is higher than the regular tank.
What am I missing? Surely it isn't just the seal of the fuel cap?
That is how it works. You can get a tee that fits in the filler neck that has a shut off float in it. If someone just connected to the filler neck without some sort of shut off it would flow to the cap.
