- Jul 16, 2012
edited to add: if it is a venting issue (which I've had with my GMC Yukon, but I doubt is the problem on OP's vehicle), try slowing down the rate at which you're pumping gas. This should allow the system to vent and prevent the pump from shutting off early.
Yes! I can get an "extra" 1-2 gallons in my Jeep Grand Cherokee by doing this. If I'm really wanting to stuff it, I back the nozzle out just 1" at the most and lock the trigger on the slowest setting. I overflowed it once doing this, so I rarely do it anymore. Slow is the key. No matter if the tanks is empty or 3/4 full, I can almost never pull the trigger all the way...it shuts off immediately.