my gauges

are u talking about chevron techron fuel additive

Yes Techron fuel additive, I am looking at a bottle and it says "clean and protect against sulfurs that can harm gas sensors" because if that doesn't work either the fuel gauge sensor will have to be replaced or the gauge it self will need to be repaired

my toyota diesel gauge drop down when it reached the 1/4 level.. but higher than 1/4 its normal. can someone help me on this. i am thinking that the floater is out of place. or the guage itself.. ????