For vehicles equipped with fuel-injection engines, external fuel filters are typically found in either of two locations near the fuel line: underneath the body close to the tank or beneath the hood near the engine. On newer automobiles, fuel filters are placed inside the fuel tank.
Using clean fuel is essential, to prolong the service life of vehicles and enhance road performance. To ensure optimal car operation, fuel filters are installed to sift through harmful fuel particles that can potentially clog and damage the engine.
Modern cars, such as trucks and sports utility vehicles released by General Motors, are equipped with in-tank fuel filters. However, long-term maintenance cost for this set-up is more expensive compared to fuel filters located outside fuel tanks.