I put some seafoam in with this tank of gas, and while driving to the parts store, I notice my gas needle rising! Seafoam gets a +1.

WARNING!!Results not typical

 

I have no idea how seafoam could possibly do that.. I kinda thought that the sender unit was sealed to some extent and did not get fuel inside of the electronic parts.:-\

I'm just assuming the float was stuck, or something.

I'm just assuming the float was stuck, or something.

Thats what I would think. Your float was gummend up and the seafoam un gunked it. If I was you after you run this tank of fuel i would change fuel filters.

Yea i second that. If there was enough junk in your tank to gum up your sending unit and you used seafoam now that junk is in your filters. Change em out at somepoint soon.

seafoam is awesome. i use it in all my older vw's and my subaru GL.

OK how to be scared in one easy lesson

 

The fuel sender is NOT a sealed unit. It is basically a rheostat with with a float attached to the wiper arm.. Over the years the sender can get a film on it. Also if there is too much sulfur in the fuel (a rare but common way to fill a fuel gauge) it will foul the circuit. The seafoam cleaned the rheostat.

 

Oh and dont worry, the car wont blow up. The tank is sealed and without oxygen the gas wont blow up.

 

 

nipper

Yeah, my car was stored for about a year before I bought it, so I was planning on doing fuel filters anyway. Thanks, though, I sometimes neglect to realize to do such simple things as that. Purolator is a good brand, right?

OK how to be scared in one easy lesson

 

The fuel sender is NOT a sealed unit. It is basically a rheostat with with a float attached to the wiper arm.. Over the years the sender can get a film on it. Also if there is too much sulfur in the fuel (a rare but common way to fill a fuel gauge) it will foul the circuit. The seafoam cleaned the rheostat.

 

Oh and dont worry, the car wont blow up. The tank is sealed and without oxygen the gas wont blow up.

 

 

nipper

 

Chevron Techron counteracts the effects of sulfer on sending units too. It didn't "fix" my chevy's faulty unit, but it did change it's behavior a bit. Maybe I need another treatment??