No? ok... here some reasons why you should have a filter...
Over time the fuel filter (Petcock in gas tank) becomes clogged with contaminants. That is it's very job, to catch any contaminants in fuel. If you filled up on tank of cheap gas then the filter would catch the bad bits if any. If you used premium gas then it will most probably last longer and catch less contaminants or dirt/rust (if any) from fuel. So it protects your fueling system. The fuel flow nicely through a clean filter, giving you clean burn, economy, sense of power, protects the fuel system components and so on. It is worth changing it every 40k miles or 2-3 years for maintenance.
Increases the life of engine
The fuel filter prevents dirt and debris that could otherwise get into the engine and damage its cylinders, pistons and other components, which might result in the need of costly repairs. Replacing the fuel filter prevents such issues and ensures a longer engine life.
Improved engine performance
Clean fuel filters are essential for the optimal engine performance. The fuel filter prevents dirt and debris from entering the vital components of the fuel delivery system. This results in higher performance of the engine. Proper maintenance and replacement of the fuel filter as recommended by the manufacturer can help boost the performance of your vehicle by 2% to 4%.
Boosts the power of the engine
The fuel filter ensures clean fuel entering the engine and enables the fuel delivery system to supply the optimal amount of fuel as required. This is possible because the fuel filter would prevent clogging of fuel injectors. This boosts the power of the engine.
Better fuel efficiency
It is important to replace the fuel filter periodically as advised in owner's manual. Replacing the fuel filter with a new one ensures removal of contaminants from the fuel and the right amount of flow of fuel going to the engine. This will ensure optimal efficiency.
A clogged fuel filter will lead the engine to get insufficient amount of fuel provided, and leads to sub-optimal performance.
Protects fuel injectors and fuel pumps from contaminants
Clean fuel is essential for optimal performance of the engine of your vehicle. The fuel filter removes dirt, rust, solids and other contaminants from the fuel. When the fuel filter does not function properly, it could lead to harmful effects on fuel pump and the injectors because of the contaminants in the fuel.
Replacing the fuel filter in your vehicle is important because it ensures engine efficiency.