Yeah I used to until I figured out there was still quite a bit of fuel in the tank. I don't know how the tank is setup but I would hope 3 gallons would be adequate to cool the pump. I had a tough time when I first bought this as the tank just seemed very small. I was used to 25 gallon tanks but the trend lately is to go small. I have 36 gallon in my Suburban and it really doesn't get substantially less mpg.....I can usually hit 550+ on a tank real easy.smj999smj wrote:I get nervous when that DTE starts flashing "******." I usually keep it between half and full and try not to let it run below 1/4. I like to keep that fuel pump fully submerged with plenty of gas to keep it cool.
So that's the crux of the issue for me. I feel like the gauge is only functional for 80% or so of the tank. If the gauge was in fact below E you would think filling it up would be a lot closer to the alleged 22 gallons these things are supposed to hold than the 19.5 gal you describe.doctahjones wrote:in my experience and experiments, i've found i have about 3 gallons from the time the light comes on, and about 2 gallons left once you hit the E line.
only once did i go under the E line. put 19.5 gallons in it that time. that's as close as i ever want to get.
Just checked my owner's manual and on page 9-2 it states 21 and 1/8 gallons for capacity with the asterisk disclaimer that the capacities listed in the table are approximate. So it appears you're closer to the correct figure than I was.doctahjones wrote:you sure it was 22?Zen_master wrote:
Imagine my surprise to read in the owner's manual the R51 has a 22 gallon fuel tank
i thought it was a smidge over 21. too lazy to go down and get my manual at the moment. an intarweb search seems to say 21.1.