Doc's Diesel Runs Like New Additive Kit 1989-2024 DGF431+D16453+DPA6314+D3705+DOCS5W40-3

DGF431+D16453+DPA6314+D3705+DOCS5W40-3

Check the coldest temperature you expect this season and find your ratio on the dilution

The Quick Detailer can be used on lightly-soiled vehicles that need a quick touch up

DFD4615+D6128+DPA6109+D15W40SEMI

Doc's Diesel Runs Like New Additive Kit 1989-2024 DGF431+D16453+DPA6314+D3705+DOCS5W40-3Docs Diesel Runs Like New Additive Kit: Modern diesel emissions systems demand serious protection. DEF crystallization, injector deposits, and DPF loading quietly rob performance and trigger costly fault codes. This kit was built to defend your entire system. From the DEF tank, to the fuel system, to the DPF. Not with a single additive, but with a complete, layered protection strategy. DEF Guard Diesel Exhaust Fluid Additive goes in every DEF fill up