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Topic: Fuel polishing (Read 1471 times) previous topic - next topic

Fuel polishing

As some of you know, I ended up changing my fuel filters something like eight times on the way back from BC. The humidity there and just sitting for extended periods of time got me. The coach ran pretty well after the first handful of filters, but I want to make sure that the next owner doesn't have any issues when I sell it soon. So with the help of some power services products (which I have come to think highly of), some paint filters, and a few more sets of fuel filters I'm slowly polishing my fuel.

I shocked the tank with their biocide and then threw the fuel and tank cleaner in a few days later . Now I am draining the tank into one tote, and then using a fuel pump to filter through a metal screen, and then a paint filter into another tote. I will continue doing this until I completely empty the tank and then pump it back into the tank via the fill nozzle. After that, I will run it hard through a final set of filters and clean the injectors and I'm hoping it will be good to go.

Not the most fun I've had in this 90° heat, but it's a nice reprieve from Jack hammering holes and pouring fence post footings for 500 feet of fencing I've been doing for the last few weeks
1987 Grand Villa ORED
2001 U320 4010

Not all that wander are lost... but I often am.

Re: Fuel polishing

Reply #1 –
Automatic transmission fluid does a great job cleaning fuel system from tank to injectors.
Even better is aviation hydraulic fluid but .....

Re: Fuel polishing

Reply #2 –
Sounds like you pick up some bad fuel somewhere? Possible I guess sitting around a couple of months with water in the tank.
Doug W.
96 36' U270 CSGI #4946
04 Toyota Tacoma 4x4
PNW

Re: Fuel polishing

Reply #3 –
Where in BC were you staying that had high humidity.
Peter and Frieda Morin
1999 36ft. U320 Foretravel
Build # 5436
1998 Suzuki Sidekick Sport

Re: Fuel polishing

Reply #4 –
Quote from: oldguy –
Where in BC were you staying that had high humidity.
Revelstoke and Nelson and it rained a ton in Revelstoke
1987 Grand Villa ORED
2001 U320 4010

Not all that wander are lost... but I often am.

Re: Fuel polishing

Reply #5 –
I really like Revelstoke and the ski hill there has great skiing. I have only been to Nelson a couple of times
and skied there once but is know for great powder skiing.
Peter and Frieda Morin
1999 36ft. U320 Foretravel
Build # 5436
1998 Suzuki Sidekick Sport

Re: Fuel polishing

Reply #6 –
And yet another use for the ubiquitous black and yellow tub  ^.^d
2000 / 36' / U320 / WTFE
WildEBeest / "Striving to put right what once went wrong"

Re: Fuel polishing

Reply #7 –
Quote from: Elliott –
As some of you know, I ended up changing my fuel filters something like eight times on the way back from BC. The humidity there and just sitting for extended periods of time got me.
Do you think it was just extended time in one place, or could you have had some buildup in the tank over a period of time? I am asking because I have had to change my FASS filters more often than the manufacturer would indicate is normal. I last changed them about four months (about 3000 miles) ago, and I have not had any extended periods where I was not moving, and now I am getting pressure loss once again. I have changed them several time since I installed the FASS system about 16 months ago. I am unsure whether I am just working through what was already in the tank or if I have gotten bad fuel/water accumulation since. I use biocide and Diesel Kleen every fill up.
Dave and Kathy Bennett
2004 U270
Build #6253
1600W Solar
700 AH Battle Born Lithium
2015 Jeep Wrangler

No matter what happens, remember you always get the trip out of it.

Re: Fuel polishing

Reply #8 –
I had to flush diesel fuel tanks to get rid of mold on the roof and sides of the tank.  Drain the tank and power wash the inside with atf or similar .
You will still need to clean the filters often.