I have had my Cat since late last year, a 2008 500 carb unit. After the 2nd or 3rd tank of gas, my gauge stopped working. The guy's @ AC say this is a common problem with the new low sulfa gas we have and I need to use an additive like Techron with every tank of fuel. Has anyone else noticed this? Anything else I can do? Replacing the sensor with every tank of fuel is not an option I want to do. Thanks in advance for any suggestions.