Two-stroke oil

Additionally, a non-2T-specific oil can turn to gum in a matter of days if mixed with gasoline and not immediately consumed.

As a rule of thumb, it will be stated somewhere on the printed label of most containers of oil available commercially, that it is compatible with "Autolube" or injector pumps.

Additives for two-stroke oils fall into several general categories: Detergent/Dispersants, Antiwear agents, Biodegradability components and antioxidants (Zinc compounds).

The current international standard (ISO 13738) for two-stroke gasoline engine oil evolved from JASO M345, which were grades intended to exceed API-TC.

Grades include:[4] The National Marine Manufacturers Association (NMMA) of the USA maintains its own TC-W line of standards.

An example of two-stroke oil bottle with measurement cap. The oil is dyed blue to make it easier to recognize in the gasoline . It appears black in this bottle because it is not diluted.