General Recommendation:
* Every 30,000 miles (48,000 km) or 2 years: This is a good rule of thumb for most vehicles, as it ensures the filter is replaced before it starts to restrict fuel flow significantly.
Factors to Consider:
* Driving Conditions: If you frequently drive in dusty, dirty, or off-road conditions, you may need to change the fuel filter more often, as these environments can introduce more contaminants into the fuel.
* Fuel Quality: If you use low-quality fuel, the filter will clog faster.
* Engine Performance: If you notice any of the following symptoms, it could be a sign of a clogged fuel filter:
* Engine hesitation or rough idling
* Difficulty starting
* Decreased fuel economy
* Loss of power
Additional Information:
* Your Toyota 4Runner's owner's manual may provide specific recommendations for fuel filter replacement intervals.
* If you're unsure when your fuel filter was last changed, it's a good idea to have it inspected by a qualified mechanic.
Remember: Replacing the fuel filter is a relatively simple task, but it's important to follow the correct procedure and use the right parts. If you're not comfortable doing it yourself, it's best to have a mechanic do it for you.
