[Jack21]

Thread on this on CR section too. Goofy fuel tank readings, and indicators bouncing all over. Mr. Fixit is right though. You're getting a linear interpretation of the level of fuel in the tank (if you're lucky), not the number of gallons, unless you have a rectangular tank. Most Cobra fuel tanks are slanted on the bottom. If you had (for instance) a 16 gallon tank, slanted on the bottom, at a gauge reading of 1/2, you would have 4 or 5 gallons remaining, not 8.

Technically, it is correctable, but would be cost prohibitive. The tank probe at your local gas station measures fuel level in inches, and converts it to fuel in gallons. The tank is cylindrical, the probe is 10 feet long, and costs $1,000. The "box" that performs the calculations runs $2,300 - $3,200 depending on the brand.