Mixing oil additives is just not proposed. Combining various formulas may possibly induce adverse reactions and reduce success. Most synthetic oil additives you could discover out there will commonly contain anti-friction formulation.  This is certainly especially true with valvetrain parts. The PSL11000 Engine Treatment serves as a layer of lubrication https://engineoiltreatment07283.tusblogos.com/34202161/engine-oil-treatment-no-further-a-mystery