1. Fuel filter
You should replace your Fuel filter every 15,000 miles.
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It is advised that you must change your fuel filter every 15000 miles. By doing so, you can enjoy increased engine smoothness & higher mileage. How?
The fuel filter is designed to filter all impurities before reaching the engine, so that your car's engine will use only pure fuel. Over the time, this fuel filter can be blocked and contaminated with particles. So, it need to be replaced.