AMSOIL 100:1 Pre-Mix Synthetic 2-Stroke Outboard Oil
Join the Preferred Customer program to save approximately 25% off the retail price today
Estimated delivery by or sooner
Smokeless Performance at the 100:1 Pre-Mix Ratio
AMSOIL 100:1 Pre-Mix Synthetic 2-Stroke Outboard Oil is engineered with low-temperature dispersants that reduce varnish and carbon deposits to help eliminate plug fouling and promote rapid throttle response in water-cooled outboard motors. Its environmentally friendly low-smoke, low-odor, low-toxicity properties produce fewer emissions at 100:1 mix ratios than other oils mixed at 50:1.
Key Benefits
- Prevents plug fouling and ring sticking
- Improves idling and throttle response
- Minimizes smoke and emissions
- Maximizes torque and power
- Protects at lean mix ratios
- Inhibits rust and corrosion common to marine applications
- Fewer emissions at 100:1 than other oils mixed at 50:1
- Warranty Secure — keeps factory warranty intact
Smokeless Protection and Superior Performance
Smokeless protection: Delivers superior lubricity and anti-wear protection at 100:1 mix ratios and burns clean to eliminate smoke and reduce emissions. Also inhibits rust and corrosion common to marine applications.
Superior performance: Improves ignition, idling and throttle response in two-stroke engines by inhibiting deposit formation that causes plug fouling, ring sticking and exhaust port blockage.
Technical Specifications
| Property | Value |
|---|---|
| Kinematic Viscosity @ 100°C, cSt | 14.5 |
| Kinematic Viscosity @ 40°C, cSt | 111.2 |
| Viscosity Index | 133 |
| Pour Point | -37°C (-35°F) |
| Flash Point | 174°C (345°F) |
| Fire Point | 234°C (453°F) |
Industry Certifications & OEM Approvals
NMMA
- TC-W3 (applications)
Applications and Mix Ratios
Use pre-mixed 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 if desired.
Mix ratios:
50:1 — 2.6 oz. per 1 gallon
80:1 — 8.0 oz. per 5 gallons
100:1 — 8.0 oz. per 6 gallons
Pros and Cons
Pros
- Prevents plug fouling and ring sticking
- Improves idling and throttle response
- Minimizes smoke and emissions
- Maximizes torque and power
- Protects at lean mix ratios
- Inhibits rust and corrosion common to marine applications
- Fewer emissions at 100:1 than other oils mixed at 50:1
- Warranty Secure — keeps factory warranty intact
Cons
- Premium Investment: Higher initial cost compared to conventional or "shelf-brand" synthetic oils.
- Limited Local Retail: Primarily available through authorized dealers and specialized synthetic outlets. National Synthetics is a local stocking dealer. Call 1-678-944-8816 to confirm in-stock items for same-day local pickup.
Order Through Your Independent AMSOIL Dealer
Skip the smoke and stretch your oil dollar with the 100:1 ratio designed for it. As your Independent AMSOIL Dealer, we provide expert guidance and competitive pricing on all AMSOIL products.
Independent AMSOIL Dealer #1858536
Frequently Asked Questions
For maximum performance, mix with gasoline at 100:1 regardless of the mix ratio specified for the equipment. Richer mix ratios may be used if desired. Reference: 50:1 = 2.6 oz. per gallon, 80:1 = 8.0 oz. per 5 gallons, 100:1 = 8.0 oz. per 6 gallons.
Use pre-mixed in two-stroke outboard motors, personal watercraft and jet boats that specify TC-W3. Its low-temperature dispersants are engineered for the deposits and plug fouling common in water-cooled outboard motors.
AMSOIL 100:1 Pre-Mix Synthetic 2-Stroke Outboard Oil burns clean and delivers fewer emissions at the 100:1 ratio than other oils mixed at 50:1, while still providing superior lubricity and anti-wear protection. Less oil per gallon also means lower oil cost and less smoke for the operator and the water.
No. AMSOIL Synthetic 2-Stroke Outboard Oil is Warranty Secure, keeping your factory warranty intact. It is a high-performance replacement for manufacturer-branded oils and is backed by the AMSOIL Limited Warranty.
Customer Reviews
See all 30 reviewsGreat 2 cycle outboard engine oil
I have been using this oil in my Yamaha 90 HP 2 cycle outboard for 25+ years and the outboard is still going strong.
Independent AMSOIL Dealer #1858536. Product information sourced from AMSOIL. Visit AMSOIL.com for the most current product details and availability.