Can I Use AMSOIL Dominator In Ski-Doo E-TEC Snowmobile Engine?

Our answer: A definite NO to using AMSOIL Dominator Synthetic 2-Stroke Racing Oil in Ski-Doo E-TEC 2-stroke engines. You are likely to have have power valve deposit issues down the line.

AMSOIL Interceptor Synthetic 2-Stroke Oil is 100% the correct choice for all Ski-Doo E-TEC 2-stroke motors.

Isn’t Dominator Racing Oil AMSOIL’s Best 2-Stroke Oil?

Many consumers assume that because Dominator has “Racing” on the label, that it must be the superior AMSOIL 2-stroke oil.

However, the best 2-stroke oil for racing (which Dominator is) is not necessarily the best oil for recreational use. Regardless of hard you push your stock sled.

Interceptor is the better option for your engine and it is NOT a step down from Dominator. The Interceptor product will provide the ultimate protection, even in extreme operating conditions. This includes full-throttle mountain climbing and navigating deep backcountry powder.

The main reason that Interceptor is the better oil for recreational use is its detergent content. Interceptor keeps variable exhaust power valves and combustion chambers clean over long intervals.

Why Is AMSOIL Dominator 2-Stroke Oil For Racing Only?

AMSOIL Dominator 2-Stroke Oil is designed strictly for racing applications only. The reason being is that racing engines are torn down very regularly. Therefore, there is no need to add significant detergent content to this oil as racing engines are disassembled so often that serious deposits will not have a chance to form.

Also, stock engines and even moderately modified engines do not run hot enough burn Dominator’s formula completely. Between this factor and the relative lack of detergents, it is a recipe for carbon deposit formation over time.

FAQ On AMSOIL Interceptor Versus Dominator

What is the difference between AMSOIL Interceptor and Dominator?
Both are 100% synthetic oils. However, there are some distinct differences between the two. Dominator has a slightly higher viscosity and is lighter on the detergents and additives needed for everyday use. Interceptor is formulated to provide the all-round performance, protection and deposit resistance needed for the very latest two-stroke engines.

Should I still use Interceptor if my engine is highly modified?
Yes, Interceptor should still be used in non-racing, everyday-use snowmobile engines, even when heavily modified and pushed to the limit. Even if you add a turbo-charger to a mountain snowmobile, Interceptor is still the best candidate to keep power valves clean. It will not let you down in terms of wear protection.

Should I run Dominator Racing Oil if I run my snowmobile on the limit?
No, Interceptor is still your best choice. It will protect you during full throttle runs up mountains all day long. You can expect world-class protection from Interceptor. Again, the key thing to remember is that Interceptor is designed for everyday use. Dominator is for racing-only engines that are torn down often.

Can AMSOIL Dominator Racing Oil be used in other makes like Polaris or Arctic Cat?
No, Interceptor is the appropriate option for the very latest Arctic Cat C-TEC2 and Polaris Patriot engines. Interceptor is the best option to keep modern two-stroke engines running perfectly. It is the ideal replacement for the OEM two-stroke oils found at your snowmobile dealer.

Where can I buy AMSOIL 2-Stroke Oils for snowmobiles?
Oildepot sells AMSOIL snowmobile oils at wholesale in Canada and the United States. Contact us for a price list using the form on this page or call us 1-800-748-5781.

Conclusion

Both AMSOIL Interceptor and Dominator are designed to be the very best in their respective classes. They are designed for distinctly different uses. Dominator for racing and Interceptor for hard everyday use.