YOU CAN KEEP YOUR OIL CLEAN AND LEAVE IT IN THE CRANKCASE INDEFINITELY... YES... KEEP YOUR ENGINE OIL PERPETUALLY CLEAN! AMSOIL has developed an oil, filtration, and oil monitoring system that can greatly extend oil drain intervals in personal vehicles with mechanically sound engines.

The plan is simple. Start with AMSOIL Synthetic Motor Oil and install two revolutionary filters. First, an AMSOIL Ea Air Filter and Second, an AMSOIL Ea By-Pass Filter. Together they are designed to keep the oil free of dirt and other harmful contaminants. Then, as part of your regular engine maintenance, you monitor the condition of your motor oil through simple, periodic oil analysis.

This plan provides all the benefits of a super premium synthetic motor oil, plus trouble-free driving for as long as you own your vehicle. The system is called TRIGARD, and is for motorists who want to materially increase the life of their vehicle and eliminate the time loss and expense of having to change motor oil at regular intervals. The Partnership of BEST OIL and BEST FILTRATION is what makes this possible. It is unique to AMSOIL. No other oil company can do it. TRIGARD has been recognized by automotive experts as the motor oil lubrication system of tomorrow, which we can give you TODAY.

AMSOIL By-Pass Oil Filters & Kits

Engine wear is caused by dirt particles larger than 5 microns. The AMSOIL By-Pass Oil Filter is 100% efficient at 2 microns now, virtually eliminating engine wear. Other advantages include protection against acid causing soot, antifreeze and water, carbon and varnish, and other oxidation components.

AMSOIL's By-Pass filters monitored through a oil analysis program have been proven to allow AMSOIL synthetics to maintain proper oil viscosity for extended periods, often beyond 150,000 miles in average gasoline and diesel vehicles. These filter systems save time and money and reduce the potential for used oil contamination in the environment. When using AMSOIL engine oils, change Ea Full flow oil filters at 1-year intervals (or 25,000 miles) and the new EaPB every other full flow filter change or 60,000 whichever comes first!