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Site Last Updated: March 26, 2012

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AMSOIL "Dominator" Synthetic 2-Cycle Racing Oil

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 RPM's 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 seizure. And increased pressure on crankshaft bearings promotes metal-to-metal contact, wear and 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

Key Benefits to You:

  • 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 system

Compatible 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.
 

Meets and/or Exceeds These Performance Specs:

  • API TC
  • JASO FC

Recommendations for Use:

AMSOIL "Dominator" Synthetic 2-Cycle Racing Oil has been formulated for both injector and pre-mix use. Through extensive tests using both in-house and with outside laboratories AMSOIL has determined that the optimum pre-mix ratio is 50:1. If you use any other mix ratio, whether richer or leaner, you will not achieve maximum performance.

Not recommended for use with nitromethane or alcohol fuels.