... more than 10%. Self-restore for friction-pair and maintain engine,diminish vibration and noise,save repair cost. Improve discharge markedly ... ,no corrosiveness. Non-disassemble cleanout function. Improve cold-start of engine,in particular,in winter. Extend several times changing period of ... SJ SL/CFCLE-CHeavy Truck,Bus etc.320ml320ml CLE-CLlarge Diesel Engine 2L2L Engine Oil Additive/Essence CLE-CL