The Magnuson-Moss Warranty Act and general principles of the Federal Trade Commission stipulate that an automaker may not require a motorist to use a particular brand of motor oil and filters unless the automaker provides those oils and filters free of charge to the people whose cars are under warranty to the automaker.

Automakers may require use of products meeting certain performance criteria. For example, North America automakers now require use of motor oils that provide American Petroleum Institute SH Performance. However, any oil providing SH performance may be used.

Major auto manufacturers and regulatory agencies have determined that warranties must cover all equipment failures they would normally cover that are not caused by the after market product. Consequently, an AMSOIL user's new car warranty still covers all failures resulting from defective original equipment or faulty workmanship by the manufacturer.

The second element of your protection is the AMSOIL Limited Warranty (use AMSOIL Synthetic Motor Oil as recommended in mechanically sound equipment, and the warranty covers lubricant related failures). Since AMSOIL motor oils have never once been deemed the cause of an engine's failure, however, this is merely added protection.

Extending drain intervals, like using AMSOIL Synthetic Motor Oil in general, does not affect new car warranties. In fact, according to a General Motors representative, "Warranty applicability is contingent upon the cause of the failure and generally covers defects in material and workmanship only." In other words, the only situation in which warranty coverage would change is the case of lubricant-related failure (in which case the AMSOIL Limited Warranty protects the consumer).

Return to Table of Contents

AMSOIL Synthetic Motor Oil performs so well for so long because it doesn't break down in intense heat like conventional petroleum oils do. It doesn't form performance-robbing deposits and it doesn't volatize, which can adversely affect lubricant performance by altering viscosity and increasing oil consumption. Finally, AMSOIL 's additive package, a key element in a lubricant's ability to function, holds up under engine stresses, remaining serviceable for the full 25,000 miles.

Note also that extending drain intervals, like using AMSOIL Synthetic Motor Oil in general, does not affect new car warranties. In fact, according to a General Motors representative, "Warranty applicability is contingent upon the cause of the failure and generally covers defects in material and workmanship only." In other words, the only situation in which warranty coverage would change is the case of lubricant-related failure (in which case the AMSOIL Limited Warranty protects the consumer).

Return to Table of Contents

Amsoil costs more than regular oil does. How can I justify paying this higher price?

Like anything of real value, however, the true consumer cost doesn't end with the off-the-shelf price. AMSOIL Motor Oil is extremely cost effective compared to conventional 3,000-mile drain interval oils in savings realized in fuel economy, reduced downtime, reduced maintenance and extended engine life.

Return to Table of Contents

Those who have been using petroleum motor oil in their mechanically sound vehicles can switch to AMSOIL safely. Petroleum motor oil and AMSOIL Synthetic Motor Oil are only incomparable in the way they perform, not incompatible.

Return to Table of Contents

How expanding technology and modern engine needs affect motor oil is a primary concern of AMSOIL engineers. High-tech engines need hi-tech oils like AMSOIL Synthetic Motor Oil-designed, not refined. AMSOIL Synthetic Motor Oil's base stock is composed of uniform molecules chosen for their lubricating characteristics. Petroleum oils are a hodgepodge of molecules; some lubricate, others detract from the ability to lubricate. The bottom line? AMSOIL 's engineers can design their motor oil to meet the needs of you and your vehicle, petroleum refiners can't.

Using an oil designed for today's needs can make a world of difference for you and your automobile by providing lower repair costs, the convenience of fewer oil changes, easier starts cold weather, better gas mileage and longer engine life. You can also expect better engine performance. These factors and the overall savings realized by using AMSOIL Synthetic Motor Oil made switching to AMSOIL the smart and easy choice!

Return to Table of Contents

Your car gets a new lease on life!

One thing's certain when motorists switch to AMSOIL Synthetic Motor Oil: their engines are being treated to the finest lubrication money can buy. Some engines appear to take the change in stride and continue operating the same as ever, others seem transformed. What many new AMSOIL users experience?

Oil Pressure Moderates. At idle, a slight oil pressure drop indicates the new oil flows more freely than the old oil did and that's beneficial to the engine. High oil pressure at idle indicates the oil pump must work hard to push the oil through the engine, which is stressful for the pump. Hard-to-pump oil may also leave some components underlubricated and unprotected.

Higher Engine R.P.M.'s. Because AMSOIL Synthetic Motor Oil generates less intrafluid friction than conventional oils do and do a better job during boundary lubrication conditions, engine bearings rotate more easily with AMSOIL in the engine. You get more bang for your fuel buck. For a given amount of energy , a bearing that moves easily rotates faster than one than that doesn't move freely.

Increased Fuel Efficiency. Less intrafluid friction and smoother boundary lubrication translates into fuel savings as less energy is used to overcome the friction required to move the vehicle a given distance.

More Power. Yet another side to lower intrafluid friction and better boundary lubrication. The power the engines used to overcome both with conventional oil now goes to moving the vehicle. Many users report their shift-points actually decrease due to the "extra" power their engines find with AMSOIL .

Spring Cleaning. Synthetic oils clean as they go, removing sludge and deposits left by the previous oil. If AMSOIL Synthetic Motor Oil is installed in a particularly fouled engine without an AMSOIL Engine Flush pretreatment, sludge and debris, freed by the cleaning action AMSOIL , ends up in the oil filter. Motorists should change their filters frequently until the cleaning process ends. Oil consumption will increase if full flow filters are not changed. Once completed, the vehicle's oil consumption rate will return to normal or even to a rate lower than its customary rate. Of course, AMSOIL Synthetic Motor Oils actually help engines achieve extremely low oil consumption rates, due to the oil's extremely low volatility(evaporation).

Easier Cold Starting. Less prone to low temperature gelling, AMSOIL Synthetic Motor Oils allow engines to turn over more easily in colder temperatures than conventional oils do. In fact, most AMSOIL users find they no longer need block heaters.

Lower Operating Temperature. Oil sump temperatures may run as much as 20 ° F cooler with AMSOIL than they do with conventional oils Friction generates heat, and since AMSOIL Synthetic Motor Oils generate less intrafluid friction than other oils do, they also generate much heat.