Hey Folks, In seven years of driving the TJ, I've had to fill up from a spare can only twice. The first time was from a Scepter mil spec can with the Scepter gasoline filler spout, and the second was from a commercial Blitz can with it's included spout. Both times the little flap that's at the deepest part of the fill port prevented the fuel from flowing down the filler neck. With the Scepter I happened to have a long skinny funnel with me, so I just stuffed it into the fill port past the little flap and poured the fuel in. The combination of the heavy 5 gallon can, long Scepter spout and the long funnel was awkward to say the least. When I used the Blitz can, I didn't have the funnel along, so I just stuck my hand down in there and held the flap open with my finger. Needless to say the fuel pouring over my hand wasn't pleasant, and even with a good wash and lots of moisturizer my skin was still dry and itchy a day later. On one occasion we had to fill up my wife's Nissan Altima from the Scepter and had the same trouble we had with the TJ. What am I doing wrong? I'm going to get a super siphon, which should make any future use a lot easier, but it seems to me that it shouldn't be this trying.
'99 TJ Sport, 4.0 I6, 5 speed manual transmission, Hi Lift w/offroad kit, Viair 450C compressor, Garmin GPS, Skid Row Engine/Transmission, steering box & radiator skid plates, Kilby gas tank plate, AtoZ Fab full length rocker guards, Performance Accessories 1" Body Lift, OME 2.5" HD springs & shocks, JKS trackbars front & rear, BFG AT 33x12.5r15, EBC Yellow pads and Centric rotors
I use the steel Blitz "NATO" style cans. I put a can on top of my spare tire and run a length of fuel line hose from the can to the filler hole. I suck on the hose to create a siphon and fill. I have never had to eat gas and this way allows me to do other things while the gas can is emptying.
Lots of the cheap cans have a small enough spout that you can shove into the flap. I've done it several times on several cars and never had that problem. One time I had to use a jerry can I just use a pen to hold the flap open and used the pocket clip to hole it in place on the filler neck. Not as fast as a funnel through the flap but much better than using your finger.
08 Unlimited Rubicon 6 speed, 315/70-16 Kelly TSR, 1.5" Spidertrax spacers factory Moab's, Rubicon Express Flex arm 3.5" lift, Smittybilt XRC front bumper with D-rings, Body Armor Extreme rock slider steps, AEV snorkel, trimmed fender flares, Hella 8" HID driving lights