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AMSOIL Gear Lubricants
Extreme-pressure lubricant engineered to meet the high-temperature/high-load demands of today's snowmobiles and ATVs.
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| Product code | Package size | Unit of measure |
|---|---|---|
| TCCCN-EA | 16 oz. | Each |
| TCCCN-CA | Case of 6 16 oz.s | Case of 6 |
| TCC05-EA | 5 Gallon Pail | 5 Gallon Pail |
AMSOIL 100% Synthetic Chaincase & Gear Oil (TCC) is an extreme-pressure 100 percent synthetic lubricant engineered for the enclosed chains and gears that drive snowmobiles, ATVs, and similar powersports equipment. The formula targets the chaincase reduction-drive that transfers power from the transmission to the track on Polaris, Ski-Doo, Arctic Cat, and Yamaha sleds, and serves as a direct replacement for OEM mineral and synthetic chaincase fluids.
The chaincase houses a chain wrapped around a small drive sprocket and a larger reduction sprocket that turns the track. Those sliding contacts run under heavy load, with metal particles inevitably shed into the oil as the chain stretches and the gear teeth wear. Extreme-pressure additives in Synthetic Chaincase & Gear Oil keep a protective film between the chain pins, rollers, and gear teeth to slow that wear and extend chain and gear life under high loads.
Synthetic base oils resist the shear and chemical breakdown that thin out conventional chaincase fluids over a season of riding. The result is consistent film strength from first ride of the year to last, even when the case sees temperature swings, water intrusion, and prolonged high-rpm running on the trail.
A pour point of -46 degrees C (-51 degrees F) per ASTM D97 keeps Synthetic Chaincase & Gear Oil flowing freely at the temperatures snowmobiles actually see at trailhead start-up. Thinner cold flow reduces drag on the chain and reduction gears, so more engine torque reaches the track instead of being burned off as parasitic loss in a stiff, cold case.
A viscosity index of 136 (ASTM D2270) keeps the fluid in grade across the operating range, so the same oil that flows at start-up still carries an adequate film once the case warms under heavy throttle.
Some riders top off a powersports chaincase with automatic transmission fluid or automotive 75W-90 gear lube to save a trip to the dealer. Automatic transmission fluid is a hydraulic fluid built for clutch friction and hydraulic control, not chain-and-sprocket extreme pressure, so gears and chain pins are left exposed to wear and premature failure. Automotive gear lube is engineered for hypoid axle gears and runs too thick for a chaincase, restricting circulation and increasing drag and wear. Synthetic Chaincase & Gear Oil is purpose-built for the chains, sprockets, and reduction gears found in enclosed powersports cases, with the extreme-pressure additive system and low-temperature fluidity those parts need.
Snowmobile chaincases see meltwater, condensation, and humidity, especially when sleds sit through summer storage. Synthetic Chaincase & Gear Oil repels water and inhibits rust, oxidation, and foam, protecting the chain links, sprocket teeth, and case bearings during long idle periods between riding seasons. Combined with annual fluid changes, this corrosion control helps preserve the metallurgy that the OEM relied on when it set chaincase service intervals.
Synthetic Chaincase & Gear Oil is engineered for use in Arctic Cat Diamond Drive gearcases, the chainless planetary reduction unit found on many late-model Arctic Cat sleds. The same formula serves Polaris, Ski-Doo/Bombardier/Can-Am, and Yamaha chaincases as a direct replacement for the OEM mineral and synthetic fluids those manufacturers specify.
Synthetic Chaincase & Gear Oil is a one-bottle solution for ATV and snowmobile chaincases, gearcases, and Arctic Cat Diamond Drive units. It is recommended for the drain interval established by the original equipment manufacturer, and the same fluid replaces several OEM part numbers across the major sled brands.
Synthetic Chaincase & Gear Oil is compatible with conventional and synthetic chaincase oils, so a partial top-off will not damage the case, but mixing reduces the performance benefits of the full synthetic formula. For best results, drain the existing fluid and refill with Synthetic Chaincase & Gear Oil. Use the AMSOIL vehicle lookup guide to confirm application match by sled make, model, and year before ordering.
| Property | Value |
|---|---|
| Kinematic Viscosity at 100 degrees C, cSt (ASTM D445) | 10.3 |
| Kinematic Viscosity at 40 degrees C, cSt (ASTM D445) | 68.6 |
| Viscosity Index (ASTM D2270) | 136 |
| Flash Point (ASTM D92) | 236 degrees C (457 degrees F) |
| Fire Point (ASTM D92) | 260 degrees C (500 degrees F) |
| Pour Point (ASTM D97) | -46 degrees C (-51 degrees F) |
| NOACK Volatility, % weight loss (ASTM D5800) | 5 |
Synthetic Chaincase & Gear Oil is offered in a 16 oz. bottle (TCCCN-EA), case of six 16 oz. bottles (TCCCN-CA), and a 5 gallon pail (TCC05-EA). All AMSOIL products are backed by the AMSOIL Limited Warranty. For broader sled fluid selection across 2-stroke and 4-stroke applications, see the snowmobile oil guide alongside the vehicle lookup guide, then check current pricing and place the order on the AMSOIL Synthetic Chaincase and Gear Oil product page.
Works good for me
Would recommend this to a friend.
Product works as intended and staff at distribution center is always very helpful.
Would recommend this to a friend.
Excellent produit
Chaincase oil lubricates the chain and reduction sprockets housed in a snowmobile chaincase, the sealed unit that transfers engine power from the jackshaft to the track and provides a gear reduction so the track turns at a slower speed than the engine. The fluid carries extreme-pressure additives that protect the chain pins, rollers, and gear teeth from the high contact loads created at the chain-and-sprocket interface.
Use a fluid that the sled manufacturer lists for chaincase service, or a synthetic chaincase oil engineered as a direct replacement for it. Synthetic Chaincase & Gear Oil is built to replace Polaris SCL, Ski-Doo/Can-Am XPS chaincase oils, Arctic Cat Synthetic Chain Lube and Synthetic ACT Gearcase Fluid, and Yamaha Snowmobile Chaincase Lube, so a single bottle covers the major OEM specifications.
Snowmobile chaincase oils are typically a thin SAE 75W-grade fluid rather than a thicker automotive 75W-90 or 80W-90 hypoid gear oil. Synthetic Chaincase & Gear Oil follows that convention, with a kinematic viscosity of 10.3 cSt at 100 degrees C and 68.6 cSt at 40 degrees C (ASTM D445) so it stays thin enough to circulate around the chain at start-up while still maintaining film strength under load.
Snowmobile manufacturers recommend changing chaincase oil annually or every 2,000 miles, whichever comes first, and the same OEM-set drain interval applies when running Synthetic Chaincase & Gear Oil. End-of-season changes are common practice, since a fresh fill displaces moisture before the sled sits through summer storage.
A typical snowmobile chaincase holds about eight to 11 ounces and is considered full when the fluid level reaches the fill hole, often described as filled to spill. Many sleds list a specific fill quantity and a precise level reference in the owner manual, so confirm the right amount and method for the chassis being serviced.
No. Automatic transmission fluid is a hydraulic fluid that lacks the extreme-pressure additives chains and gears require, so wear and premature failure become more likely. Automotive 75W-90 or 80W-90 gear oil is too thick for a chaincase and is engineered for hypoid axle gears, not chain-and-sprocket drives, leading to restricted circulation and increased drag. A purpose-built powersports chaincase oil such as Synthetic Chaincase & Gear Oil is the correct choice.
Synthetic Chaincase & Gear Oil is compatible with conventional and synthetic chaincase oils, so a partial mix during a top-off will not harm the case. Mixing reduces the performance benefits of the full synthetic formula, however, so a complete drain and refill is preferred whenever the case is opened for service.