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Outboard 100:1 Pre-Mix Synthetic 2-Stroke OilHelp

Performance-Engineered for Outboards

Outboard 100:1 Pre-Mix Synthetic 2-Stroke Oil Product Image
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$5.50 Retail Price (USD)
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Product Code: ATOBC-EA
Product Highlights View Full Description

Designed for pre-mix applications as lean as 100:1 ratios or richer. Improves throttle response and lowers or eliminates smoke. Minimizes deposit formation and lowers emissions. Performance emphasis on the cooler operations of water-cooled motors.

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 deposit formation 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.

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.

  • 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

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.

50:12.6 oz.1 U.S. GALLON
80:18.0 oz.5 U.S. GALLONS
100:18.0 oz.6 U.S. GALLONS

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

Warranty Secure

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 via the Internet at or upon request at (715) 392-7101. Keep Out of Reach of Children. Recycle used oil and bottle.

*All trademarked names and images are the property of their respective owners and may be registered marks in some countries. No affiliation or endorsement claim, express or implied, is made by their use. All products advertised here are AMSOIL-engineered for use in the applications shown.

ATO Package Sizes
Code Package Size Unit of Measure Product
ATOBC (ATOBC-EA) 8-Oz. Each SABER Outboard: (1) 8-oz. Bottle
ATOBC (ATOBC-CA) 8-Oz. Case of 12 SABER Outboard: Case of (12) 8-oz. Bottles
ATOQT (ATOQT-EA) Quart Each SABER Outboard: (1) Quart Bottle
ATOQT (ATOQT-CA) Quart Case of 12 SABER Outboard: Case of (12) Quart Bottles
ATO30 (ATO30-EA) 30-Gallon Drum Each SABER Outboard: 30-Gallon Drum
ATO55 (ATO55-EA) 55-Gallon Drum Each SABER Outboard: 55-Gallon Drum
More about AMSOIL Reviews


by PowerReviews
AMSOILOutboard 100:1 Pre-Mix Synthetic 2-Stroke Oil

(based on 2 reviews)

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Reviewed by 2 customers

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(0 of 3 customers found this review helpful)


The smaller container is a win-win for me.


from undisclosed

Verified Buyer

Comments about Outboard 100:1 Pre-Mix Synthetic 2-Stroke Oil:

I really like the smaller container. I don't use my boat that much and a quart size bottle lasts for more than a year. The smaller container is just right for me.

(3 of 3 customers found this review helpful)


Best hi perfect outboard oil


from Cape Cod

Verified Buyer

Comments about Outboard 100:1 Pre-Mix Synthetic 2-Stroke Oil:

I used this oil for several years... ran out and bought some Mercury synthetic oil. My engine blew up a month later. So I'm back to the Amsoil and I have to say I think it's the best product on the market. If you have a V-6 that you run at high rpm and you want peace of mind, then I would buy this oil and nothing else. No smoke, excellent low idle, high speed confidence.

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  • Tunnel hull

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