Fuel Polishing

[riviera_27]

Can anyone explain to me what

Can anyone explain to me what is meant by 'fuel polishing'and why it is done?

 

[haffiman37]

"They mainly run the remaining

"They mainly run the remaining fuel in Your tank through separate filters. Of no value if using the normal tank pick-up as that leaves the bottom layers untouched.
If problems in the tank, empty and clean!"