Every engine, even lawnmowers, should have a fuel filter. Many don't realize it, but a gascolator is also a fuel filter (that needs periodic cleaning). Carbs and servos have filters, but often are very small and only designed as a last resort filter.
I can't even imagine the thought of skipping a fuel filter on an engine that is there to keep you from falling out of the sky. I have now serviced two planes that stopped running due to fuel contamination and that is with filters. Without the filters, it would have happened MUCH sooner and with a lighter contamination load, probably not happened at all.
N64LR - RV-6A / IO-320, Flying as of 8/2015
N11LR - RV-10, Flying as of 12/2019
Last edited by lr172 : 03-13-2023 at 06:26 AM.