High grade mineral based 2-stroke oil used for braking in the engines. By using this oil a shorter break-in running time can be achived. The high quality of the oil minimizes residues in the engine. For breaking in the engine the following mix ratios should be used : 1:40 ( 2,5% ) or 1:50 ( 2% ). After a break in running time of 5 – 10 hours , fully synthetic oil can be used.