Factors that might necessitate more frequent changes:
* Poor fuel quality: If you regularly use fuel from less reputable stations, you may need to change your filter more often, as it will clog faster.
* Dirty fuel: If you suspect contamination in your fuel tank, more frequent changes are recommended.
* Off-road driving: Driving in dusty or harsh conditions can introduce contaminants into the fuel system, necessitating more frequent filter changes.
* Older vehicle: As your truck ages, the fuel system components can become worn, potentially leading to more contaminants entering the fuel.
Ignoring fuel filter maintenance can lead to:
* Reduced fuel economy: A clogged filter restricts fuel flow, leading to less efficient engine operation.
* Engine misfires or stalling: Insufficient fuel delivery can cause the engine to run poorly or even stall.
* Engine damage: Contaminants passing through a clogged filter can damage fuel injectors and other sensitive engine components.
It's always best to consult your owner's manual for the manufacturer's specific recommendation. However, the 12,000-15,000 mile or yearly interval is a safe and practical guideline. If you notice any performance issues, such as poor fuel economy or engine hesitation, you should check your fuel filter sooner than scheduled.