anyone got any ideas whats going on here? never drops for any reason only goes up a little bit or drops
back to 23.4/5/6, idle or highway. Is the guage just not working properly?

I've hit the trip meter from the last fill up so gonna see how many k's i get for this tank
used to get 13l/100km's before the cam. It's a VZ SS 5.7 3.7 gears.