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AMSOIL

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Synthetic Lubricants Independent Dealer

Since the introduction of AMSOIL synthetic motor oil in 1972, AMSOIL has developed the most complete line of synthetic lubricants and automotive products in the world. The history of AMSOIL product innovations is a checklist of industry firsts. AMSOIL "firsts" in motor oil, two-cycle oil, gear lube, grease, air filter and oil filter technology are proof-positive of the AMSOIL commitment to innovation.

AMSOIL Firsts

  • 1st to develop an API-rated 100 percent synthetic motor oil

  • 1st to introduce the concept of "extended drain intervals" with a recommended 25,000-mile/1-year drain interval

  • 1st U.S. company to utilize the NOACK volatility test as a standard of performance excellence

  • 1st to produce synthetic motor oils for diesel engines, racing engines, turbo and marine engines

  • 1st to introduce synthetic oils that legitimately contribute to improving fuel efficiency

  • 1st to manufacture synthetic gear lube for automotive use

  • 1st to manufacture a 100:1 pre-mix synthetic 2-cycle oil

  • 1st to manufacture a synthetic automatic transmission fluid for automotive use

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AMSOIL Series 2000 Series 2000 Synthetic 0W-30 Motor Oil
Race-proven technology designed for passenger car performance. Provides unsurpassed fuel efficiency and up to twice the wear protection provided by popular conventional and synthetic motor oils. Recommended for use in all vehicles requiring 5W-20, 5W-30 or 10W-30 motor oils.
AMSOIL 5W30 100% Synthetic 5W-30 Motor Oil (ASL)
AMSOIL 100% Synthetic 5W-30 Motor Oil (ASL) delivers extraordinary lubrication in all types of automotive gasoline engines. By combining the industry premier synthetic technology with AMSOIL premium additives, AMSOIL ASL exceeds the higher performance demands of modern engines.
AMSOIL 10W30 SAE 10W-30 Synthetic Motor Oil
Dramatically outperforms conventional petroleum motor oils. Reduces friction, heat and wear for maximum power, performance and fuel efficiency. Resists high temperature burn-off, chemical breakdown and sludging -- keeps engines cleaner. Outstanding low temperature fluidity for fast, dependable winter starts and immediate start-up protection. Exceeds the most demanding world-wide performance standards and meets warranty requirements for all domestic and imported passenger car engines, both turbocharged and nonturbocharged. Up to 25,000-mile or 1-year drain intervals. API SL/CF, ILSAC GF-3, ACEA A2/3 B2/3, JASO VTW
AMSOIL Engine Flush Engine Flush
AMSOIL Fast Acting Engine Flush is made from a carefully selected blend of solvents and special cleaning agents that dissolve and disperse harmful deposits formed in the crankcase, cylinder walls, pistons and rings of an internal combustion engine. When used as directed, it cleans and restores operating efficiency to valves, valve lifters, rocker arms, and pistons for improved horsepower, fuel economy, and performance. Use before changing oil.
AMSOIL ATF Synthetic Universal Automatic Transmission Fluid
Meets the requirements of most automatic transmissions. Delivers maximum protection and is excellent in demanding environments such as towing, hauling or commercial use. Lasts longer than conventional ATF for extended drain intervals. Superior hot and cold weather performance. Improves efficiency and typically reduces operating temperatures by as much as 50°F.
By-Pass Oil Filters
The AMSOIL By-Pass Oil Filter provides the best possible filtration protection against wear, oil degradation, rust and corrosion. Working in conjunction with the engine’s full-flow oil filter, the AMSOIL By-Pass Filter operates by filtering oil on a "partial-flow" basis. It draws approximately ten percent of the oil at any one time and traps the extremely small, wear-causing contaminants and water that full-flow filters can’t remove. The AMSOIL By-Pass Filter typically filters all the oil in the system several times an hour, so the engine continuously receives analytically clean oil.
AMSOIL Bypass Filter Illustration

AMSOIL Bypass Oil Filter Kit By-Pass Oil Filter Mounting Kits
Engine wear is caused by dirt particles larger than 5 microns. The AMSOIL By-Pass Oil Filter removes particles as small as 1/10 of a micron, virtually eliminating engine wear. AMSOIL By-Pass Oil Filters filter all the oil in a six-quart system in about five minutes at an average engine speed equivalent to 45 mph.

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AMSOIL Interceptor INTERCEPTOR Synthetic 2-Cycle Oil
A high-performance two-cycle oil with a performance emphasis on exhaust power valves. Excellent for all types of snowmobiles, motorcycles, personal watercraft, ATVs and jet boats. Contains high levels of detergent additives to prevent valve sticking. High quality replacement for manufacturer branded oils. Injector use or 50:1 premix. JASO FC, API TC
ASMOIL Motorcycle Oil SAE 10W-40 Synthetic High Performance Motorcycle Engine Oil
Formulated for maximum protection of motorcycle engines (liquid or air cooled, standard or V-twin), transmissions and primary chaincases. High levels of phosphorus and zinc provide maximum wear protection. Wet clutch compatible. Contains no friction modifiers. Anti-foam and viscosity stable for best possible overall protection. Performance specifications include: API SG/CF, JASO MA
AMSOIL Chaincase Lube Series 2000 Synthetic Chaincase Lubricant
AMSOIL Series 2000 Chaincase Oil provides superior protection and performance for enclosed chains. Ideal for snowmobiles, ATVs and general equipment. Extreme pressure additives provide extra wear protection. Extends chain life repels water, and inhibits rust, oxidation and foam. Superior low temperature starting, performance and protection.
AMSOIL Synthetic Transmission Fliud Quickshot SE - Restores Peak Performance in Small Engines
AMSOIL Quickshot SE (AQS) is a premium fuel additive formulated to thoroughly clean and restore peak performance in small engine and powersports equipment fuel systems. It also stabilizes fuel between uses and during short-term storage periods. Its revolutionary technology focuses on three major fuel-related issues plaguing small engines and powersports equipment: ethanol, water and dirty pump gas.

AMSOIL Diesel and Marine Oil SAE 15W-40 Synthetic Heavy Duty Diesel & Marine Motor Oil
Engineered for all types of diesel engines with an emphasis on modern, low emission heavy-duty diesel engines. High 12 TBN controls acids from blow-by and EGR. High levels of detergency and dispersant additives control soot thickening, oxidation and wear. Prevents bore polishing, deposit formation, and ring sticking. Extended drain capabilities reduce downtime and motor oil expenses. Global performance specifications include: API CI-4+/SL/CF/CF-2, EO-N+03', DHD-1, ECF-1, VDS-3
AMSOIL Severe Gear Lube SEVERE GEAR Lubricant 75W-90
Specifically engineered for high demand applications, including trailer towing, heavy hauling, 4X4 off road driving, commercial use, and racing. Superior lube "film strength" combined with extra additives protects gears and bearings from scoring and wear. Resists high heat and possesses excellent cold flow properties. Performance specifications include: API GL-5/MT-1, MIL-PRF-2105E, GO-J, SHAES 234 (Eaton PS-037)
AMSOIL 5th Wheel and Open Gear Compound Synthetic Fifth Wheel & Open Gear Compound
Stays in place and protects over a broad temperature range without flaking in low temperatures or softening in high temperatures. Excellent for fifth wheel applications, with a convenient aerosol spray application that creates less mess. Designed to resist water washout. Can also be used in open gear applications.
AMSOIL Synthetic Transmission Fliud Torque-Drive™ Synthetic Transmission Fluid
Engineered specifically for the Allison TES-295 specification. Replaces Allison/Castrol Transynd® fluid. Excellent protection in temperature extremes. Prevents sludge and varnish buildup. Ensures consistent, smooth clutch engagement over the life of the fluid and prevents clutch glazing and elongated shift times. Recommended for use in applications specifying Allison® TES-295 or C4, DEXRON® III, MERCON®, TE-ML-14C

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409,000 Mile Oil Drain Interval Mack Engine Teardown

After 409,000 miles without an oil change, the AMSOIL protected Mack E7-400 engine in this truck was as wear-free as an engine in comparable service treated to TWENTY TIMES the oil changes.

“I didn’t see any surprises in there at all. Based on my experience with AMSOIL Motor Oil, it came out the way we expected,” said owner/operator Haywood Gray of his 1990 Mack E7-400 engine.

It came out in good shape, exactly what you’d expect for a well-maintained engine with 630,000 miles. Yet the engine’s oil had not been changed for 409,000 miles!

Gray began using AMSOIL Synthetic Heavy-Duty Diesel and Marine 15W-40 Motor Oil (AME) in the E9-400 V-8 engine of his first truck, a 1984 Mack, after the engine accumulated 45,000 miles. For 280,000 miles, Gray changed his oil at 40,000- to 60,000-mile intervals though his oil analysis reports showed, without exception, that the oil was good for continued use. At 325,000 miles, Gray increased his oil drain interval to 100,000 miles.

The engine was torn down at 600,000 miles when Gray decided to sell the truck. The cylinder liners, bearings, pistons, rings and oil pump, all treated to extended oil drain intervals with AMSOIL, were found to be in excellent condition.

Gray continued using AMSOIL AME in the engine of his new truck, a 1990 Mack with a E7-400 engine. With the new truck, instead of using 100,000 mile drain intervals, Gray began basing his oil drains on the findings of a used oil analysis program. He also installed an AMSOIL By-Pass Oil Filter.

After 630,000 miles total and 409,000 miles without an oil change, the E7-400 engine was torn down by the local Mack dealership in December 1996 and its parts were examined by an engine rater from a major oil additive manufacturer.

The engine showed light to moderate wear throughout, just as an engine in similar service and lubricated with conventional oil changed at 15,000- to 20,000-mile intervals would show. In fact, according to the engine rater the parts he examined – cylinder liners, pistons, rings, bearings, valve train components – could have been put right back in the engine and would have continued to provide the good, dependable service they had provided all along – after 409,000 miles without an oil change!

Piston Rings Cylinder Liners
"The pins show no wear at all. The piston crowns and lands show a normal amount of carbon. The skirts are very clean with a few fine vertical lines." "The rings are very, very good. All the rings are free. None are broken. No plugging whatsoever in the oil rings." "Probably 95 percent of the crosshatching is still in the liners. No scuffing, no cavitation in the liners. The liners could go back in the condition they’re in."
     
Crossheads Main Bearings Rod Bearings
"Again, very, very light wear. These could be put right back in and used again. In an extended drain program [with petroleum oil] there’s a possibility you could see maybe half again as much wear." "Light wear. They compare to [those in] an engine that had 15,000- to 20,000-mile [petroleum] oil and filter changes.” “Minimal wear. These, too, compare to [those in] an engine that had 15,000- to 20,000-mile [petroleum] oil and filter changes.”
     

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