Fuel Filters
A fuel filter removes contaminants from gasoline or diesel before it reaches the engine. It catches rust particles, dirt, water, and manufacturing debris that enter the fuel supply. Without it, those particles would reach the fuel injectors and fuel pump, causing misfires, power loss, and expensive component failures. What Does
Fuel Filters
Most vehicles with a serviceable inline fuel filter need it replaced every 20,000 to 30,000 miles. Diesel trucks with external filters typically follow a tighter schedule: every 15,000 to 22,500 miles. If your car's owner's manual lists no fuel filter interval, your
Fuel Filters
A fuel filter removes contaminants from gasoline or diesel before it reaches the engine. It catches rust particles, dirt, water, and manufacturing debris that enter the fuel supply. Without it, those particles would reach the fuel injectors and fuel pump, causing misfires, power loss, and expensive component failures. What Does
Fuel Filters
On most modern fuel-injected vehicles, the fuel filter sits after the fuel pump. The pump pulls fuel from the tank and pushes it through the filter before it reaches the injectors. However, location varies by vehicle design, and older carbureted cars often placed the filter after the pump but before
Fuel Filters
The arrow on a fuel filter points in the direction fuel travels through it. Install the filter so the arrow points toward the engine and away from the fuel tank. Fuel flows from the tank, through the filter, and on to the engine. The arrow tells you which end is
Fuel Filters
A fuel filter's micron rating tells you the size of particles it stops. A 10 micron filter catches particles 10 micrometers and larger. A 30 micron filter only catches particles 30 micrometers and larger. The lower the number, the finer the filtration. But finer is not always better.
Fuel Filters