Fuel Tank Crud Cleaning
 

I have had my truck off the road almost a year, replacing the 350 engine. Never expected this long, but things happen. The remaining gas in the tank (not sure how much) is 87 octane 10% ethanol and has sat for the year. I am sure it is now junk. Besides draining, what else can I do to clean it out, hopefully without having to pull the tank.

Re: Fuel Tank Crud Cleaning
 

One year is not that long.
You said "Crud Cleaning". Is there crud in the tank?
If the fuel smells bad, it needs to be replaced.
If it smells fine, I would add some high-test to it and burn through it.

Bill

Re: Fuel Tank Crud Cleaning
 

I can't see it, but have heard stories of ethanol fuel separating and gumming things up if it sits idle for too long. There is no past evidence of a fouled tank.

Re: Fuel Tank Crud Cleaning
 

If you are worried, buy a siphon pump from the local auto parts store and suck the fuel out. You can store that in milk jugs and give it away, that's what I did and my fuel was 10 years old.

Once it's sucked out, you can refill with fresh gasoline or use non-ethanol gasoline and run the truck with that.

My tank was full of flash rust but it had sat for nearly 20 years. I ended up getting the tank "renewed" at a radiator shop, replacing all fuel lines, connections, pump, filter, and having the carb rebuilt. I have only run non-ethanol fuel in it since.