2Cycle Oil Recommendation Chart

Two-cycle engines remain the workhorses in recreational equipment, including outboard motors, motorcycles, snowmobiles and personal watercraft, as well as in lawn and garden applications like lawn mowers and weed eaters. Design changes over recent years have included direct fuel injection engines, in which fuel is injected directly into the combustion chamber, and exhaust power valves, which improve combustion efficiency at varying RPM. These design changes have allowed two-cycle engine manufacturers to effectively reduce emissions, improve fuel efficiency and decrease oil consumption. Today's two-cycle motors of all types require specialized oil technology to deliver maximum engine protection,
dependable operation and long service life

As the leader in two-cycle oil technology, AMSOIL has performed extensive research in developing a new line of revolutionary, specialized oils called the "Fabulous Four." AMSOIL INTERCEPTOR Synthetic 2-Cycle Oil (AIT) was the first new oil to be introduced. It is primarily recommended as an injector oil or at a 50:1 mix ratio in carbureted, electronic fuel injected (EFI) and direct fuel injected (DFI) snowmobiles, personal watercraft, motorcycles and ATV's. Formulated with wax-free premium quality synthetic esters and a specialized additive package, INTERCEPTOR is designed to address the exhaust valve sticking problems associated with certain snowmobile models.

AMSOIL HP Injector Synthetic 2-Cycle Oil (HPI), DOMINATOR Synthetic 2-Cycle Racing Oil (TDR) and Saber Professional (ATP) and Outboard (ATO) Synthetic 100:1 Pre-Mix 2-Cycle Oils complete the Fabulous Four lineup. The application chart below ranks each oil's performance in common two-cycle applications.

AMSOIL Product
Outboard*
Snowmobile*,
Motorcycle* & ATV*
Personal Watercraft*
& Jet Boat*
Chainsaw,
Chop Saw & Pump
Weed Eater,
Blower & Lawn Mower
Moped, Scooter
& Go-Cart
HP Injector (HPI)
TC-W3, API TC
(Injection or 50:1 Pre-Mix)
Excellent
Very Good
Very Good
Not recommended
Not recommended
Not recommended
INTERCEPTOR (AIT)
API TC, JASO FC
Not recommended
Excellent
Excellent
Good
Good
Good
DOMINATOR (TDR)
API TC, JASO FC
Racing (1)
Racing (2)
Racing (2)
Very Good
Very Good
Very Good
Saber Professional 100:1 (ATP)
Pre-Mix ISO-L-EGD
JASO FD, API TC
Not recommended
Very Good
Pre-Mix Only
Very Good
Pre-Mix Only
Excellent
Excellent
Excellent
Saber Outboard 100:1 (ATO)
Pre-Mix, TC-W3, API TC
Excellent
Pre-Mix Only
Very Good
Pre-Mix Only
Very Good
Pre-Mix Only
Not recommended
Not recommended
Not recommended

Even though AMSOIL 2-Cycle Oils have been optimized for specific applications, they are multi-functional and recommended for use in many areas. The chart rates each oil's performance abilities per application as follows:

Excellent: "The" primary recommendation for the oil. This is the best possible choice for the application. The oil is specifically designed for the operating conditions of the motors in these markets. There is only one "Excellent" recommendation per category.

Very Good: A main recommendation for the oil. Identifies an oil that is very good for the operating conditions of these motors.

Good: A secondary recommendation for an oil. The oil was not specifically designed for these applications, however, the chemistry in the oil is suited to the operating conditions of these motors.

Not Recommended: Identifies applications where the product was not intended for use. "Excellent" rated products offer superior performance.

Racing:

(1) Not recommended 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.

(2) Excellent for racing or modified motors. Very good for recreational use.

*Recommended for all (DFI) direct fuel injected, (EFI) electronic fuel injected, and carbureted motors. Outboard motors include Mercury®, Optimax®, Johnson® & Evinrude® FICHT® & E-TEC®, Yamaha® HPDI, Nissan® & Tohatsu® TLDI®

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