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When Should You Change Your Oil Filter?
Oil filters play a major role in the performance and longevity of an engine by removing contaminants and promoting proper oil flow. Learn when to change yours.
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Fuel Filters Require Regular Service
Fuel filters today appear significantly different from those used in the past, but their purpose remains the same: to protect the fuel system by removing contaminants such as rust, dirt and other foreign matter from the fuel. Stricter emissions legislation, higher injection pressures and ultra-low sulfur and biodiesel fuels have all contributed to the evolution of fuel system technology. The fuel filter is often overlooked in terms of regular maintenance.
Purpose of Fuel Filters
Internal combustion engines consume a mixture of fuel and air to produce energy. The most commonly used fuels are gasoline and diesel fuel.
Older gasoline engines use a carburetor that mixes the fuel and air in exact proportions for efficient carburetion. It has many small passageways and delicate parts which can be damaged by dirt. A dirty carburetor can cause erratic performance or complete engine shutdown.
Carbureted engines have been replaced with electronic fuel injection (EFI) systems. Fuel injection is a much simpler, more precise way to deliver fuel to the cylinders.
Gasoline and diesel engines normally use a fuel injector for each cylinder. The injector meters the fuel under high pressure through small openings in the tip and into the combustion chamber. A supply pump supplies fuel to each injector. High operating pressures and tight clearances make the injectors vulnerable to damage and wear when exposed to dirt and contaminants. The key to keeping a fuel system operating at its best is cleanliness.
Types and Sources of Contaminants
Contaminants may enter the fuel system when unfiltered fuel is pumped into the vehicle tank or through loose tank caps or faulty sealing gaskets. Fuel can also be compromised by contaminants or dirt particles left in the tanks or lines during the manufacturing and assembly process. The most common contaminants found in fuel are rust, dirt and water.
Rust usually comes from large storage tanks, but can also form in vehicle tanks if low fuel levels are left in the tanks over long periods of time. Rust is an abrasive and causes damage to the injection system components.
The most common source for water is condensation in the fuel tank. If the fuel tank is not kept filled, warm moisture-laden air condenses on the cooler inside metal wall of the fuel tank. Water can also enter the fuel in underground storage tanks, during vehicle tank filling on wet, rainy days, or through leakage past fuel tank filler caps and improperly-designed vent openings.
Dirt can find its way into the fuel through dirty caps, tank spouts and dispensing nozzles. Vent systems, tank caps and other seals should be checked frequently to ensure they are in good condition and none are missing. Another contaminant sometimes found in diesel fuel is bacteria.
Types of Fuel Filters
There are numerous types of fuel filters for gasoline and diesel applications, including in-line, element/cartridge and spin-on.
In-line filters are located in the fuel line between the tank and injectors or carburetors.
Element/cartridge filters require installation into some type of housing in the vehicle fuel system. These filters are often neglected due to lack of consumer knowledge of the location and the inaccessibility of the filter.
Spin-on fuel filters are similar to oil filters. They are easy to replace and come in a variety of sizes. Some automobiles and light trucks have two fuel filters.
The first filter, usually located in the fuel tank, can be made of fine woven fabric or other filter mediums. This filter prevents large pieces of contaminant from damaging the fuel pump. The tank filter also prevents most water from going to the engine. Under normal conditions, the tank filter will not require service or replacement; however the second filter requires regular service.
Gasoline and diesel engines are very sensitive and will not tolerate dirty fuel. The most delicate part of a diesel engine is the fuel injection system. Injectors have moving parts with very close tolerances, and small particles of contaminant can damage them or cause erratic performance.
Servicing Fuel Filters
Fuel filters should be changed at intervals recommended by the engine or equipment manufacturer. When operating under more adverse conditions or with very dirty fuel, the filters may need to be changed more frequently. Replacing fuel filters at the recommended intervals is the best assurance against engine problems and fuel starvation.
AMSOIL OIL FILTERS
AMSOIL Ea Oil Filters
AMSOIL Ea® Oil Filters (EAO, EA15K) feature advanced full-synthetic media that traps and holds a greater amount of small, wear-causing contaminants compared to conventional filters. They provide extended service intervals for increased convenience, while helping reduce engine wear.
- Superior Construction
- Contaminant Retention
- Less Restriction
- Absolute Efficiency
Service Life
When used in conjunction with AMSOIL synthetic motor oils, AMSOIL Ea Oil Filters are guaranteed for extended service life:
- Ea Filters designated with product code Ea15K are recommended for 15,000 miles/one year, whichever comes first, in normal or severe service.
- Ea Filters designated with product code EaO are recommended for 25,000 miles/one year, whichever comes first, in normal service or 15,000 miles/one year, whichever comes first, in severe service.
AMSOIL Ea Heavy Duty Oil Filters
Excellent Efficiency and Capacity Throughout Extended-Service Intervals.AMSOIL Ea Heavy-Duty Extended-Life Oil Filters (EaHD) provide excellent filtering efficiency and high levels of contaminant capacity for heavy-duty on- and off-road gasoline and diesel applications. They provide extended service intervals that coincide with the maximum drain interval recommendations of AMSOIL synthetic motor oils (not to exceed one year), increasing convenience and reducing maintenance costs. Ea Heavy-Duty filters offer AMSOIL quality at competitive prices.
- Superior Construction
- Contaminant Retention
- Less Restriction
- Absolute Efficiency
Service Life
Ea Heavy-Duty Extended-Life Oil Filters should be changed at time of oil change, not to exceed one year.
WIX Oil Filter
In the last three years, AMSOIL has introduced more new products and made more technical advances than during any other period in the company’s storied 34-year history. AMSOIL now provides engine oils for nearly every application, multiple gear oils, greases, fuel additives and appearance products. To offer a more wellrounded selection of automotive products, AMSOIL also offers high quality products from other manufacturers such as Twin Air, Donaldson and WIX.
Recently, AMSOIL’s focus has been on the filtration market. The recently launched Ea Filter line includes the finest filtration products in the world for the auto/light truck market, and Donaldson covers the heavy-duty market. To complement the Ea line of filters, AMSOIL now offers WIX filters, allowing one-stop shopping for automotive customers.
AMSOIL carries over 700 WIX air, oil, fuel, racing and transmission filters for automotive and light truck applications.
MANN-FILTERS Oil Filter
MANN-FILTER specializes in European vehicles and provides AMSOIL Dealers and customers a greater breadth of products for vehicles like Audi, BMW, Mercedes, Volkswagen, Porsche, Volvo and Jaguar. They also build select filters for Ford, GM and Chrysler.
Oil filters from MANN-FILTER purify oil of dirt and solid particles such as dust, abraded metal, carbon deposits and soot particles. The filter housing is pressure-resistant, protected against corrosion and features a long-life elastomer seal. They are low flow resistant for fast lubrication of the engine and come in three different shapes to adjust to different requirements: oil filter elements, spin-on oil filters and oil filters for use in transmission systems.
TWO WAYS TO SAVE!
AMSOIL Preferred Customers pay wholesale prices on all AMSOIL products, a savings of up to 25 percent. With an extended line of products you can protect your equipment and spend less on maintenance at a lower cost.
Order $100 or more in AMSOIL products at full retail prices and receive free ground shipping anywhere in the continental U.S.
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