AMSOIL — Dominator 2-Cycle Racing Oil, Quart — TDR-QT

AMSOIL Dominator 2-Cycle Racing Oil, 1 Quart

AMSOIL Dominator is a synthetic 2-stroke racing oil built for high-revving marine engines, where a premix oil has to survive conditions that would break down lesser formulas. It is engineered for maximum performance in high-RPM marine applications, with race-proven protection for outboards, personal watercraft, and high-performance 2-cycle marine engines.

Compatible Applications

• 2-cycle outboard motors
• Personal watercraft (PWC)
• High-performance and racing marine 2-stroke engines

This oil is mixed into the fuel at the fuel-to-oil ratio your engine manufacturer specifies. Check your engine owner's manual to confirm the correct ratio and any oil certification requirements before first use.

Part Details

• Part number: TDR-QT
• Brand: AMSOIL
• Product type: 2-stroke racing oil (premix)
• Grade: Synthetic
• Size: 1 quart
• Condition: New

Key Features

• Advanced synthetic base oils for maximum lubrication and protection
• Designed for racing and high-output 2-stroke engines
• Clean-burning formula reduces carbon deposits, exhaust smoke, and spark plug fouling
• Helps prevent piston scuffing and ring sticking in extreme conditions
• Compatible with various fuel-to-oil ratios, per your engine manufacturer's specifications

Service Interval

Dominator is a premix oil, so its interval is every tank. Mix it into the fuel at the ratio specified for your engine, and confirm that ratio in your engine owner's manual before the first mix rather than assuming it matches your previous oil.

Technical FAQ

Can it be used in any 2-stroke marine engine? It is designed for 2-cycle outboards, PWC, and high-performance marine 2-stroke engines. Your engine owner's manual is the final word on oil choice and mix ratio.

What does it do under racing loads? It is built for high-output 2-stroke engines, where it helps prevent piston scuffing and ring sticking in extreme conditions while reducing carbon deposits, exhaust smoke, and spark plug fouling.

What mix ratio should I use? Use the fuel-to-oil ratio your engine manufacturer specifies. This oil is compatible with various ratios; the correct one is set by your engine, not the oil.

Related Products

Other 2-stroke oils and mixing tools stocked in this store:

• Outboard Two-Cycle Oil, Premium 2-Stroke Engine Oil — a separate premium 2-stroke oil, not a substitute for the mix ratio your engine requires.
• Sierra Blue Premium TC-W3 2-Cycle Engine Oil, 1 Quart — a TC-W3 rated 2-cycle oil in the same size from a different line.
• Sierra 95303 Synthetic Blend TC-W3 Direct Injection 2-Cycle Engine Oil, 1 Gallon — a synthetic-blend oil built for direct-injection 2-strokes, in a gallon size.
• Mercury 2-Cycle DFI Oil 8M0230194 — a Mercury direct fuel injection 2-cycle oil, a different brand line.
• Seachoice 2-Stroke Oil-to-Gas Measuring Bottle, 32 oz — a mixing bottle for measuring oil into fuel, a tool rather than an oil.

Parts Desk Insights

Best use case: High-revving 2-stroke applications, including performance outboards and PWC, where a race-grade synthetic premix earns its keep.

Most common mistake: Assuming the old mix ratio carries over. 2-stroke oils are not interchangeable between engines, and the fuel-to-oil ratio belongs to the engine, not the oil. Always confirm the ratio in your owner's manual before the first mix.

Sizing and fitment: This listing is a 1-quart container. If you are mixing multiple tanks, plan the quart-to-fuel math at your engine's ratio, or see the Seachoice measuring bottle in Related Products to make the pour accurate.