yer Pruitt much? with the fuel, White tell the light cums on as it is dun by a senser in the tank then just put the needle on at just be for nothing the temp... let it tick over for a bit like 20min or so ? or tack it a drive tor 15min then let it sit for a min so it is running at normal operating temper then fire it on in the middle of the scales. its not a Prussian instrument anyway, if it goes up its not right lol as for the speed you need to set it to a point wear it will rest at 0 then i got it to sit at 60mph on the sat nav and 60 on the dials that way its spot on wear you need it