AMSOIL 100:1 Pre-Mix 100% Synthetic 2-Stroke Outboard Oil

AMSOIL 100:1 Pre-Mix 100% Synthetic 2-Stroke Outboard Oil is specifically designed for pre-mix applications in outboard motors. It can be mixed as lean as 100:1 ratios, significantly improving throttle response and reducing or eliminating smoke. This oil contains a heavy dose of low-temperature dispersant additives, excelling at reducing varnish, carbon, and deposit formation in water-cooled motors. The oil is formulated to minimize deposit formation and lower emissions, making it environmentally friendly. It offers excellent lubricity and cleanliness, controls friction, and helps prevent wear, plug fouling, ring sticking, and exhaust-port blocking. Additionally, it is smokeless and stabilizes fuel during storage, providing exceptional performance for outboard engines.

4.9
star rating from
25
total reviews

This product is available in:

Individual 8 oz. Bottles
Cases of 12 8 oz. Bottles
Cases of 12 Quart Bottles
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Product Code:

ATOBC-EA

Review by Dave Mann

AMSOIL 100:1 Pre-Mix 100% Synthetic 2-Stroke Outboard Oil Description

AMSOIL 100:1 Pre-Mix 100% Synthetic 2-Stroke Outboard Oil is specifically designed for pre-mix applications in outboard motors. It can be mixed as lean as 100:1 ratios, significantly improving throttle response and reducing or eliminating smoke. This oil contains a heavy dose of low-temperature dispersant additives, excelling at reducing varnish, carbon, and deposit formation in water-cooled motors. The oil is formulated to minimize deposit formation and lower emissions, making it environmentally friendly. It offers excellent lubricity and cleanliness, controls friction, and helps prevent wear, plug fouling, ring sticking, and exhaust-port blocking. Additionally, it is smokeless and stabilizes fuel during storage, providing exceptional performance for outboard engines.

AMSOIL Outboard 100:1 Pre-Mix Synthetic 2-Stroke Oil

Performance-Engineered for Outboards

Specifically designed for outboard motors, Outboard 100:1 Pre-Mix Synthetic 2-Stroke Oil contains a heavy dose of low-temperature dispersant additives that excel at reducing varnish, carbon and deposits in water-cooled motors. Its low-smoke, low-odor, low-toxicity properties produce fewer emissions at 100:1 mix ratios than oils mixed at 50:1, benefitting operators and the environment. Outboard Synthetic 2-Stroke Oil is formulated to prevent “oil loading” and plug fouling for rapid throttle response, making it ideal for trolling motors.

AMSOIL Synthetic 2-Stroke Oil has been providing improved performance and protection in two-stroke engines since 1973. Trust the extensive experience of AMSOIL, The First in Synthetics®, to do the best job protecting your engine.
AMSOIL 100:1 Pre-Mix 100% Synthetic 2-Stroke Oil
  • Excellent lubricity and cleanliness properties
  • Controls friction and helps prevent wear, plug fouling, ring sticking and exhaust port blocking
  • Improves throttle response
  • Lowers or eliminates smoke
  • Delivers outstanding protection and performance at lean mix ratios
  • Anti-rust formulation counteracts the damp environments often encountered in outboard applications

Engine Protection

Outboard Synthetic 2-Stroke Oil provides premium protection and performance at 100:1 mix ratios. It is formulated for hot-operating two-stroke outboard motors, effectively fighting carbon and deposit formation and preventing ring sticking.

Smokeless Operation

Outboard Synthetic 2-Stroke Oil’s synthetic formulation burns cleanly. When mixed at 100:1, smoke is virtually undetectable. Boaters subjected to smoke and fumes benefit from these low-emission properties.

TYPICAL TECHNICAL PROPERTIES

Outboard Synthetic 2-Stroke Oil (ATO)

Kinematic Viscosity @ 100°C, cSt (ASTM D445) 14.5
Kinematic Viscosity @ 40°C, cSt (ASTM D445) 111.2
Viscosity Index (ASTM D2270) 133
Pour Point, °C(°f) (ASTM D97) -37(-35)
Flash Point, °C(°f) (ASTM D92) 174(345)
Fire Point, °C(°f) (ASTM D92) 234(453)

APPLICATIONS

For pre-mix use in two-stroke outboard motors, personal watercraft and jet boats that specify TC-W3. For maximum performance, mix with gasoline at 100:1 regardless of the mix ratio specified for the equipment. Richer mix ratios may be used where desired.

RATIO OIL FUEL
50:1 2.6 oz. 1 U.S. GALLON
80:1 8.0 oz. 5 U.S. GALLONS
100:1 8.0 oz. 6 U.S. GALLONS

To calculate the precise amount of oil you need, try our interactive 2-stroke oil mix calculator.

TECHNICAL SERVICES

For immediate answers to your technical questions call (715) 399-TECH (8324) between 8 a.m. and 5 p.m. Central time or email tech@amsoil.com.

WARRANTY SECURE®

Outboard Synthetic 2-Stroke Oil is Warranty Secure, keeping your factory warranty intact. Outboard Synthetic 2-Stroke Oil is ahigh-performance replacement for vehicle manufacturer-branded products and is also backed by the AMSOIL Limited Warranty (G1363). For details, visit AMSOIL.com/warrantysecure.

HEALTH & SAFETY

This product is not expected to cause health concerns when used for the intended application and according to the recommendations in the Safety Data Sheet (SDS). An SDS is available at AMSOIL.com or upon request at 715-392-7101. Keep Out of Reach of Children. Don’t pollute. Return used oil to collection centers.

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Reviews

5

star rating

2 cycle oil

We operate a forest products business and use this oil for our chainsaws. very reliable and easy to use.

5

star rating

Works great

Keeps my outboards running fine . Very good lubricant.

5

star rating

2 cycle.

Great product. Works perfect.

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