DOMINATOR Synthetic
2-Cycle Racing Oil
JASO FC -- API TC
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- Provides excellent film strength for high heat, high RPM motors
- Reduces friction for maximum power
- Recommended for use with coated or non-coated racing pistons
- Recommended for use with exhaust power valves
- Recommended for use with high octane racing gas
- Burns clean; Prevents ring sticking and plug fouling
- Provides excellent protection at 50:1 pre-mix or in injection systems
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DOMINATOR, an AMSOIL exclusive formulation, lubricates and protects high performance two-cycle motors, both on and off the track. High performance motors, particularly those that are modified, operate hotter and at higher RPMs than recreational motors, and they need good oil for peak performance. DOMINATOR is engineered for racing. It has the right film strength and clean burning properties for “on the edge” operation.
Super Film Strength
High performance two-cycle motors have high compression ratios, which significantly increase combustion chamber heat and crankshaft bearing pressures. Hot combustion processes quickly burn off and evaporate light oils and cause rapid piston expansion, decreasing piston-to-cylinder wall clearances. This promotes piston scuffing and possible cylinder wall clearances. This promotes piston scuffing and possible seizure. And increased pressure on crankshaft bearings promotes metal-to-metal contact, wear pitting.
High heat and pressures require tough oil with better film strength and more lubricity. DOMINATOR, constructed with AMSOIL heavy synthetic oil, handles high heat better than mineral oils and provides improved film strength and lubricity. DOMINATOR reduces friction and provides an extra measure of protection against piston scuffing and crankshaft bearing wear.
Clean Burning
High combustion processes require the proper additives and oils to control deposits. DOMINATOR contains strong, high temperature detergent additives and highly pure AMSOIL synthetic oil. It prevents deposits that cause ring sticking, plug fouling and exhaust port blocking. DOMINATOR is an optimized product for severe service.
Applications
DOMINATOR is recommended for use in high performance stock or modified two-cycle motors, including air or liquid cooled snowmobiles, personal watercraft, motorcycles (Moto X), ATVs, go-carts and outboard motors*. Good for use with coated or non-coated pistons, high-octane racing fuels and exhaust power valves. Compatible with most other two-cycle oils, however, mixing oils should be minimized.
Use at 50:1 pre-mix ratios (2.6 oz. Oil per U.S. gallon of gas) or as injection oil where JASO FC or API TC oils are specified. Not suitable for use with alcohol or nitro-methane fuels.
*Not suitable for long-term use in outboard motors as a TC-W3 type oil, although excellent as a race oil for short-term use where motors are periodically inspected.
Typical Technical Properties
| Kinematic Viscosity @ 100 deg. C, cSt (ASTM D-455) |
7.6 |
| Kinematic Viscosity @ 40 deg. C, cSt (ASTM D-455) |
40.9 |
| Viscosity Index (ASTM D-2270) |
156 |
| Pour Point, deg. C, (deg. F) (ASTM D-97) |
-48 (-54) |
| Flash Point, deg. C, (deg. F) (ASTM D-92) |
92 (198) |
| Fire Point, deg. C, (deg. F) (ASTM D-92) |
97 (207) |
AMSOIL 2-Cycle Oil Recommendations
| AMSOIL 2-Cycle Oil |
Outboard* |
Snowmobile*,
Motorcycle* & ATV* |
Personal Watercraft*
& Jet Boat* |
Chain Saw,
Chop Saw & Pump |
Weed Eater, Blower
& Lawn Mower |
Moped, Scooter
& Go-Cart |
HP Injector (HPI)
TC-W3, API TC
(Injection or 50:1 Pre-Mix) |
Excellent |
Very Good |
Very Good |
Not Recommended |
Not Recommended |
Not Recommended |
INTERCEPTOR (AIT)
API TC, JASO FC |
Not Recommended |
Excellent |
Excellent |
Good |
Good |
Good |
DOMINATOR (TDR)
API TC, JASO FC |
Racing (1) |
Racing (2) |
Racing (2) |
Very Good |
Very Good |
Very Good |
Saber Professional 100:1
Pre-Mix (ATP) ISO-L-EGD,
JASO FC, API TC |
Not Recommended |
Very Good
Pre-Mix Only |
Very Good
Pre-Mix Only |
Excellent |
Excellent |
Excellent |
Saber Outboard 100:1
Pre-Mix (ATO) TC-W3, API TC |
Excellent
Pre-Mix Only |
Very Good
Pre-Mix Only |
Very Good
Pre-Mix Only |
Not Recommended |
Not Recommended |
Not Recommended |
Equipment manufacturers and motor builders have redesigned two-cycle motors to reduce emissions and increase fuel economy. These changes have increased operating temperatures, reduced oil consumption and incorporated direct fuel injection and exhaust power valves. AMSOIL 2-Cycle Oils are designed to maximize performance in all types of engine designs and are optimized for select applications.
Even though AMSOIL 2-Cycle Oils have been optimized for specific applications, they are multi-functional and recommended for use in many areas. The chart rates each oil's performance abilities per application as follows:
Excellent: The primary recommendation for the oil. The oil is specifically designed for the operating conditions of the motors in these markets. There is only one "Excellent recommendation per category.
Very Good: A main recommendation for the oil. Identifies an oil that is very good for the operating conditions of these motors.
Good: A secondary recommendation for an oil. The oil was not specifically designed for these applications. However, the chemistry in the oil is suited to the operating conditions for these motors.
Not Recommended: Identifies applications where the product was not inteded for use.
Racing:
- Not recommended for long-term use in outboard motors as a TC-W3 type oil, although excellent as a race oil for short term use where motors are periodically inspected.
- Excellent for racing or modified motors. Very good for recreational use.
*Recommended for all direct fuel injected (DFI), electronic fuel injected (EFI) and carbureted motors. Outboard motors include Mercury®. Optimax®, Johnson® & Evinrude® FICHT® & E-TECtm, Yamaha® HPDI, Nissan® & Tohatsu® TLDI®.
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