Ultimate, universal 2-stroke oil is manufactured exclusively for ECHO. As a result of extensive research, Power Blend XTended Life Oil. | FEATURES: Is a semi-synthetic blend of oil certified for use in all air-cooled, 2-stroke, outdoor power equipment engines Exceeds ISO-L-EGD and JASO M345/FD requirements Has superior cleaning capabilities Minimizes exhaust port blockage Protects against rust, wear and corrosion Provides low smoke emissions Contains a fuel stabilizer that doubles fuel life.