Efficiency is the filter's ability to capture contaminants. The more efficient a filter is, the more contaminants it will remove from the oil.
AMSOIL Ea® Full-Flow Oil Filters have one of the best efficiency ratings in the automotive/light-truck market. They provide a filtering efficiency of 98.7 percent at 20 microns, while competitive filters demonstrate efficiencies as low as 51 percent (see graph).
Full-flow Oil Filters install directly into the line of oil circulation. The oil passes through the filter as the oil journeys between the oil pump and the engine. A full-flow filter must be able to remove and hold contaminants without obstructing oil flow to the engine.
Because they use a thin layer of porous filter paper, most filters on the market compromise the filtration of finer particles. Such filters have almost no extended cleaning ability since they have a low capacity for storing dirt.
These "surface-type" paper filters quickly become restricted as debris builds up on the paper surface, forcing the filter by-pass valve to open and allows unfiltered oil into the engine.
Cellulose fibers are inconsistent in size and shape.
This allows more contaminants to pass through, resulting in higher restriction and lower capacity.
(Note: The red circles represent the diameter of a 20 micron particle)
A filter’s capacity refers to the amount of contaminants it can hold and still remain effective.
AMSOIL Ea® Full-Flow Oil Filters 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.
Small, consistent synthetic fibers trap smaller particles.
They also hold more contaminants, resulting in lower restriction.
Proper oil flow is essential to keeping engine parts lubricated at all times. Ea Oil Filters' synthetic fibers are smaller than the fibers used in traditional filters, allowing them to provide lower restriction.
During cold-temperature warm-up periods, an Ea Oil Filter allows the oil to flow through the filter more easily than a typical cellulose filter does. Lower restriction decreases engine wear.
AMSOIL Ea Full-Flow Oil Filters are made with premium-grade full-synthetic media. The strictly controlled processing of this media ensures accurate filter construction and is what allows Ea Oil Filters to deliver higher capacity and efficiency along with better durability.
Ea Oil Filters' full-synthetic media technology is resin-free to resist degradation from hot oil. It uses a wire screen backing that is pleated with the media for superior strength.
They are constructed with HNBR gaskets that are fully tested to extreme distances in numerous severe environments and feature fully tucked seams, a molded element seal, roll-formed threads and a long-lasting, premium-grade silicone anti-drainback valve.