Dominator is not a long term oil, meaning that it is assumed that racing engines are meant to be torn down on a regular basis, your engine in your sled is not.
What this means is that the interceptor will protect your engine and burn cleaner for long term protection, the dominator is formulated more for short term only performance, which sacrifices some protection for a regular trail sled.
Think of it this way, a racing motor never gets old enough for wear and tear to be an issue, so the racing oil can be formulated differently, (more for performance, less for protection).
Dominator is for modded sleds, Interceptor is for power valved sleds. Interceptor is $24.50 a gallon, Dominator is $28.50 a gallon. These prices are picked up or delivered in the Milwaukee, WI area. Shipping charges would apply to other areas.