I put a new tank on the car some time back and I would always wonder why my gas ran out too soon. It's a 25 gallon tank and fuel sending gauge seemed to work fine. Anyway I kept doubting the gauge as I could never put 25 gallons in the tank. Turns out the tank seem to be a lil off in even leveling cause I only can get a about 13 gallons max put in the tank before it runs out from the fillr neck. Further checking and it was lower on the left side than the right, so I tried going up a lil here and there but still cannnot get this thing level. I know it's a 25 gallon tank 100% so is there a special clear angle it should be or just straight up and no tilt at all or what ,it's crazy.