Bestline oil dose not mix with most oils because it is mostly PAO that wont mix.This oil also has Teflon not good.This additive only works like their paid for adds when bestline is added as a oil not just a additive. On now to fuel additives never add Teflon to fuel or calcium sultanate it clogs emission control devices with ASH. look up best line MSDS. Check out turbo maxx no harmful damaging contaminants. Found on Ebay Amazon and www.zddpmaxx.com
