Originally Posted By: Bluejay27
My shop teacher explained it really well. If you're ever pumping gas and the station runs out, replace your fuel filter since you just sucked up all the dirt in the bottom of their tank.
However, you really only need to replace it if you feel like you're losing power under heavy loads, like hills and full throttle driving, when the engine needs a lot of fuel.
That's what my teacher taught me 20+ yrs ago. Nowadays, I have to change my mindset in-tune of what's going on out there (Technology-wise). gone are the days where an inline high-pressure fuel filter that needs scheduled regular replacement; the system most automobiles run on are called "returnless" type where the only fuel filter in the system is the one inside the gas tank, and it's made of nylon mesh(strainer).
Also: most fueling station pumps nowadays have a newer, finer, most of the time 2-stage filtration system setup for fuel to catch any debris before fuel enters the customer's tank.
The only worry now still is water. Which, with E-10, is pretty much a no-brainer issue.
**Note: that brass filtering mesh inside individual fuel injectors don't count.
Q.