Chemicals & Fluids › SI-7 Synthetic 2T Engine Oil Image 1 of 1 SI-7 Synthetic 2T Engine Oil $21.99 Clean-burning, synthetic ester for injector/autolube or pre-mix applicationsWear protection extends engine lifeAPI TC, JASO FD, ISO-L-EGD Quantity: Purchase Added! Clean-burning, synthetic ester for injector/autolube or pre-mix applicationsWear protection extends engine lifeAPI TC, JASO FD, ISO-L-EGD