Larry, blowing out the rust from the fuel lines/gas tank does not stop
the rust,it only helps to increase the rusting problem, don't create
trouble, stop the rust. Spend 25.00 for POR 15 your tank is de-rusted for
20 years. One filter should be all you need. I have always been a
believer in correcting a problem not trying to hide it or avoiding it,
such as using three filters, this does solve the rust. Check the big
three on the price of a gas tank, if you need three filters you have a
serious problem about to become bigger as the rust gets bigger & bigger &
bigger. Just my 2 pennies.
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