fuellevel1j1939 - SPN 96 - to do

Ratio of volume of fuel to the total volume of fuel storage container. When Fuel Level 2 (SPN 38) is not used, Fuel Level 1 represents the total fuel in all fuel storage containers. When Fuel Level 2 is used, Fuel Level 1 represents the fuel level in the primary or left-side fuel storage container.

For sample vehicles, fuellevel2j1939 (SPN 38) has one distinct value: 102, meaning it is out of the meaningful domain of fuellevel2j1939, so it appears that fuellevel2j1939 is not used in at least those vehicles.