Best 2 cycle Snowmobile oil

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Amsoil INTERCEPTOR™ High Performance Synthetic 2-Cycle Oil (AIT) 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  <<<<<<<<<<<<<    Package sizes include: 1-Quart Bottle 1-Quart Bottles (case of 12) 1-Gallon Bottle 1-Gallon Bottles (case of 4) 16-Gallon Keg 30-Gallon Drum 55-Gallon Drum

Amsoil INTERCEPTOR™ Synthetic 2-Cycle Oil is formulated with a proprietary blend of the finest synthetic base oils and additives available today. This unique Amsoil Chemistry represents a breakthrough development in the field of two-cycle engine lubrication. The backbone of Amsoil INTERCEPTOR 2-Cycle Oil is a specially developed molecularly saturated synthetic base oil. This, combined with a robust additive package, ensures exceptional lubricity, cleanliness and optimum clean-burning characteristics. Extensive research and testing, including a full snowmobiling season in severe Rocky Mountain applications, has proven that wear on cylinders, pistons and bearings is significantly reduced. And with up to 30 percent more detergency and dispersancy additives than typical two-cycle oils, Amsoil INTERCEPTOR virtually eliminates hard carbon deposits that cause exhaust power valve sticking, ring sticking and preignition-promoting "hot spots" in the combustion chamber. Helps prevents hard carbon deposits that cause exhaust power valve sticking and ring sticking. Superior lubricity controls cylinder, piston and bearing wear. Reduces smoke and odor aazociated with two-cycle engines. Helps prevent plug fouling. Provides exceptional SAE #4 cold temperature fluidity (-58°F pour point). Versatile and excellent for all types of recreational equipment. Protects against rust. Helps prevent pre-detonation from combustion chamber "hot spots." See Article: Two-Cycle Engine Applications and Lubrication Needs PRODUCT DESCRIPTION Amsoil INTERCEPTOR Synthetic 2-Cycle Oil is formulated with a proprietary blend of the finest synthetic base oils and additives available today. This unique Amsoil chemistry represents a breakthrough development in the field of two-cycle engine lubrication. The backbone of Amsoil INTERCEPTOR 2- Cycle Oil is a specially developed molecularly saturated synthetic base oil. This, combined with a potent additive package, ensures exceptional lubricity, cleanliness and optimum clean- burning characteristics. Extensive research and testing, including a full snowmobiling season in severe Rocky Mountain applications, has proven that wear on cylinders, pistons and bearings is dramatically reduced. And with up to 30 percent more detergency and dispersancy than typical two-cycle oils, Amsoil INTERCEPTOR virtually eliminates damaging deposits on piston skirts, ring grooves and exhaust power valves. APPLICATIONS (2-Cycle Recommendations Chart) Amsoil INTERCEPTOR Synthetic 2-Cycle Oil is recommended as an injector oil or at a 50:1 mix ratio in carbureted, electronic fuel Injected (EFI) and direct fuel injected (DFI) snowmobiles, personal watercraft, motorcycles, ATVs and jet boats, including, but not limited to, those manufactured by Bombardier®, Yamaha®, Arctic Cat®, Polaris®, Kawasaki®, Suzuki® and Honda®. It is recommended wherever JASO FC or API TC two-cycle oils are specified. INTERCEPTOR is a premium quality replacement for recreational equipment manufacturers' branded two-cycle oils. It is compatible with most mineral and synthetic two-cycle oils, however, for best performance, mixing oils should be minimized. 400,000 Miles of Severe Snowmobile Field testing With No Deposit Buildup, Power Valve Sticking, Ring Sticking or Engine Failures. Subjected to adverse field testing conditions in the Rocky Mountains, including long trail rides, high RPM powder riding and steep hill climbs, Amsoil INTERCEPTOR demonstrated superior wear protection and outstanding deposit control. No carbon deposits are detectable in the functioning region of the exhaust power valves, resulting in "no stick" performance, continuous valve operation and reduced maintenance. Pistons show no scoring, little or no wear and no heavy deposits, and wrist pins show no discoloration from heat. In fact, the original machine markings on the pistons are still visible. Cylinder head is clean with no deposits, preventing pre-ignition problems. TYPICAL TECHNICAL PROPERTIES INTERCEPTOR™ Synthetic 2-Cycle Oil Kinematic Viscosity @ 100°C, cSt (ASTM D-445) 8.5 Kinematic Viscosity @ 40°C, cSt (ASTM D-445) 45.1 Viscosity Index (ASTM D-2270) 170 Pour Point °C (°F) (ASTM D 97) -50 (-58) Flash Point °C (°F) (ASTM D 92) 86 (187) Fire Point °C (°F) (ASTM D 92) 86 (187) ASTM Brookfield Viscosity @ -40°C (°F) 12100 cP SAE Fluidity/Miscibility #4 DANGER: harmful or fatal if swallowed. Contains synthetic lubricant and petroleum distillates. If swallowed do not induce vomiting. Contact a physician immediately. Keep away from fire, heat and open flame. Use with adequate ventilation. Avoid frequent or prolonged skin contact. Flush eyes with water for 15 minutes in case of contact. KEEP OUT OF REACH OF CHILDREN.

Subject: Two-cycle exhaust power valves

Technical Service Bulletin

OBJECTIVE:

To bring to light the existence and purpose of a special mechanism referred to as an exhaust power valve used in the two-cycle industry to control the size of the exhaust port.

ISSUES:

The need in certain two-cycle engine designs to service the exhaust power valve

TECHNICAL DISCUSSION:

When dealing with basic two-cycle engine design, the size of the exhaust port can be extremely important. A large port tends to provide freer flow offering additional performance at higher engine speeds. Due to loss of fresh air/ fuel charge at lower speeds however, horsepower and torque are often compromised when a larger exhaust port is utilized. Smaller ports on the other hand, tend to offer better low speed performance which diminishes as engine speeds increase due to their restrictive nature. The most desirable situation would be one in which the size of the exhaust valve would change with engine speed. Smallest at low speeds with a gradual increase in size as the engine RPMs increase.

The concept of an adjustable exhaust port size is nothing new. Variations have been around since the 1970s and in mass production in the motorcycle industry since the early 1980s. In recent years, this type of exhaust port has become increasingly popular within the motorcycle and snowmobile industries.

Most commonly referred to as a power valve, its operation is quite simple. Though the actual function of the valve will vary with design, the general principle is the same. At low engine speeds, the power valve is in a closed position, covering a portion of the exhaust port. In this position, low and lower speed performance is maximized. As the engine reaches higher operating speeds, the valve is retracted creating a larger exhaust port. The end result is a maximization of high-speed operation without sacrificing low end and mid-range performance.

The movement of the valve can be controlled in several differing ways. Some designs use exhaust or cylinder pressure to activate the valve while others use an electro/mechanical method. A third style uses a direct cable or mechanical linkage to operate the valve. Though each design has its own benefits and disadvantages, all suffer from a similar problem. That problem, is that they all require periodic maintenance.

With the valve being placed in the exhaust stream, it must function in an extreme environment. Not only must it deal with high temperatures but also exposure to a constant flow of contaminates. Carbonaceous material, un-burnt fuel and heavy oil residue can form deposits on the valve.

As the level of these deposits build, the movement of the valve will become sluggish. Eventually the deposit level will reach a point at which the valve will stop moving. One should keep in mind that the level of force available to activate these valves is minimal. Even moderate restriction due to deposit formation can render the valve in-operable. In order to maintain peak performance, periodic maintenance is required. Within the snowmobile industry, some recommend that valve maintenance (cleaning) be performed as frequently as after every 500 – 1,000 miles of operation.

Subject: Two-cycle exhaust power valves

This may seem quite frequent but in many cases it is not. The length of time however, will vary depending on two major factors. The first is how the equipment is used. power valve equipped engines that are subjected to extensive idle or operation at continuous low speeds tend to require more frequent service. Secondly, the type and brand of oil used in the equipment can be a significant factor affecting the frequency of needed service. Amsoil Interceptor synthetic two-cycle oil for instance, has demonstrated superiority in the area of maintaining power valve cleanliness. Not only has this shown through in bench tests but also in the real world of field demonstration. At intervals designated by the equipment manufacturer or when engine performance issues arise, the power valves should be serviced. The actual service process will vary from one design to another hence one should refer to the individual manufacturer servicing instructions. If you are a consumer and you have any doubt as to how to properly service the valve, it should be left to a qualified technician. As the valve is being disassembled, one should pay close attention to it’s ability to move within it’s housing. The valve should move freely and with little or no resistance. If a high level of resistance is noted or the valve is frozen in place, you can rest assured the valve was negatively effecting engine performance. Also keep in mind that if a valve has been in use for any length of time, it will have some discoloration and deposit formation. The presence of deposits is not of great concern. The type of deposit and the degree to which they hinder movement is more important. Hard dry carbon is worse than soft oily deposits. In other words, do not expect the valve to appear shinny and new. When removing or cleaning, care should be taken not to mar or scratch the surfaces of the valve. Damage to the surface of the valve can result in restricting it’s movement once reinstalled. Residue and deposits should therefore be removed using a non-metallic scraper and/or a cleaner such as Amsoil Power Foam. Cleaners such as this help to diazolve residue and loosen deposits without damaging critical surfaces.

RECOMMENDATIONS:

In high performance two-cycle engines, power valve maintenance will always be a concern . The use of Amsoil Interceptor synthetic two-cycle however can dramatically reduce the need and ease of such servicing. When servicing is required, Amsoil Power Foam can assist in providing safe and effective cleaning. The end result is more consistent performance with less effort and cost.