Castrol Outboard 2T is an ashless 2 stroke outboard engine lubricant for use in oil injected and premix outboard engines. Castrol Outboard 2T is also suitable for water-cooled two stroke jet skis. Castrol Outboard 2T provides a very good level of cleanliness and engine protection. Castrol Outboard 2T is suitable for outboard engines with either oil injection or pre-mix type lubrication systems where NMMA TC-W3 specification is called for. It can be used at fuel/oil ratios up to 100:1, always in accordance with manufacturer recommendation. By exceeding TC-W3 specifications, Castrol Outboard 2T is recommended where the previous specifications of TC-2, TC-W and TC-WII are nominated.