Fuel Filters | Donaldson, Wix & Mann Filters
Shop High-Efficiency Fuel Filters Used for Engine Protection, Particle Removal & Maximum Fuel System Longevity
Buy AMSOIL Fuel Filters // Advanced Protection for Gas & Diesel Engines
Engineered for gas & diesel engines, our heavy-duty in-line, in-tank, and water-separator fuel filters remove harmful contaminants before they reach your combustion chamber - ensuring smooth acceleration, peak fuel economy, & maximum engine life.
No matter the internal combustion engine type, the one thing that unites all gasoline and diesel engines is that you need fuel to get from point A to point B. However, as a vehicle ages and debris, dirt, and rust build up in your fuel tank, a functional, efficient fuel filter becomes essential for the clean operation of your engine. Here at Amsoil, we are proud to carry a variety of regular and heavy-duty fuel filters designed to keep your engine running on clean fuel around the clock.
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What is a Fuel Filter?
A fuel filter is the first line of defence against dirt, rust, sediment and water in your fuel tank from reaching the engine. The filter acts as a barrier between your fuel tank and your precision engine parts, such as fuel injectors and fuel pumps, which are prone to blockages and gunk buildup. Fuel filters come in three different varieties. In-line filters are located along the fuel line and provide filtration between the gas tank and the engine. In-tank filters are located in the fuel tank itself and typically consist of a pre-filter sock attached to the fuel pump. Finally, water separators in diesel engines are designed to filter water that can build up in your fuel and protect the fuel injection pump.
Shop Our AMSOIL Fuel Filters
Our fuel filters come in a variety of shapes and sizes to meet your specific fuel tank specifications. From the heavy-duty P-Series by Donaldson to a Wix or a Mann fuel filter, we have the right option for your vehicle in stock and ready to ship.
Donaldson Fuel Filters
Donaldson’s P-Series Heavy Duty Fuel Filters are the perfect option for those running heavy-duty engines and need that extra filtration in their fuel lines. With improvements over OEM-branded filters and a tried-and-tested filter that will reduce engine wear, a Donaldson filter could be the right one for your engine type.
Wix Fuel Filters
Wix fuel filters are proven to reduce engine wear and deliver better-than-OEM performance. Whether you are running a performance engine or have an everyday commuter, a Wix fuel filter might be the right fit for your engine.
Mann Fuel Filters
With over 70 years of innovation, Mann has been a leading fuel filter manufacturer for generations. With their fuel filter, you will enjoy better-than-OEM performance with proven wear production in all engine types.
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We have an AMSOIL product for every vehicle - it's your ride, you decide.
Your engine’s thirsty.
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AMSOIL // Engineered For What You Drive & How You Drive
From daily drivers to diesel haulers, weekend toys to workhorse machines — every engine deserves oil that’s made to handle the way you use it. Share a few details with us, and we’ll match you with the premium AMSOIL products designed to protect your engine and boost performance where it counts.
Frequently Asked Questions
No Dumb Questions, Just Dry Dipsticks
How often should a fuel filter be replaced?
If you have a classic car or a vehicle that requires a fuel filter replacement, replace it every 1 to 2 years or between 10,000 and 25,000 miles. However, many modern cars, trucks, and SUVs come with lifetime filters built into the fuel tank that do not require replacement unless there is a major issue with the fuel tank. Your owner’s manual will let you know what type you have, or you can chat with an Amsoil technician who would be happy to help you out and find out if you need a replacement fuel filter.
What are the signs of a clogged fuel filter?
There are a few signs that you might be dealing with a clogged or bad fuel filter. The first is that you are experiencing a sudden loss of power when driving up a hill or when hauling larger loads. The second is if you are dealing with engine misfires or rough idling. Finally, if you are dealing with a difficult-to-start engine or if your check engine light is on, the fuel filter could be your issue.
Can a dirty fuel filter damage my engine?
Yes, a dirty fuel filter can certainly damage your engine, as a malfunctioning filter can restrict fuel flow, causing the engine to run too lean and misfire or even overheat. Over time, running lean can cause serious damage to your catalytic converter, fuel pump and fuel injectors.
Are fuel filters different for gasoline and diesel engines?
Yes, the fuel filters in gasoline and diesel engines are different. The main differences are that diesel fuel filters are designed to remove water from the diesel through water separators and drain valves, and will have a higher micron rating to trap the increased particulates that can damage the engine,
Where is the fuel filter located in a vehicle?
The most common location of fuel filters on modern engines is in-line along the fuel line on the frame rail under the passenger or driver side, just ahead of the rear wheels, or in the engine bay near the firewall. Some vehicles also have in-tank fuel filters, typically “lifetime” filters that are part of the main fuel pump module.
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High Performance, Higher Praise // AMSOIL Reviews Straight from the Source
From coast to coast, AMSOIL Dealers are earning high marks from customers who know their engines. Whether it’s a daily driver in New York, a dirt bike in Arizona, or a diesel truck in Texas, real reviews are rolling in from every corner of the country — all praising the performance, protection, and reliability that AMSOIL delivers.
