When I retired from doing technical training in the forklift industry (and being a certified Cummins and Yanmar tech), Yanmar, Cummins, Perkins, and Mitsubishi were all recommending the Stanadyne Lubricity additive for engines built prior to the Tier III(? Or maybe IV) diesels (about 2008-2010 manufacture). Beginning about then the engines were designed to operate on ultra-low sulphur (ULS) fuel having 15 PPM of sulphur.
>From the late 80s-early 90s, diesel was low sulphur at 500PPM. Before the late >80s, diesel fuel had up to 5000 PPM of sulphur. The sulphur acted as a >lubricant for valve guides, valve seals, and the tight tolerances in the fuel >injection system. ULS fuel is supposed to have other stuff in it to make up for the lack of sulphur. But all the manufacturers we used recommended the Stanadyne product. That’s what I use in my 2010 engine. Rick Brass Washington, NC From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Ronald B. Frerker via CnC-List Sent: Monday, August 20, 2018 6:32 PM To: cnc-list@cnc-list.com Cc: Ronald B. Frerker <rbfrer...@yahoo.com> Subject: Stus-List Diesel additive one last time >From past emails I reviewed, I noted that Stanadyne and Biofor JR are the >additives of majority choice. One question, which Stanadyne formula are folks using, the Lubricity or Performance formula? And does one formula cover both performance and lubricity? Ron Wild Cheri C&C 30-1 STL
_______________________________________________ Thanks everyone for supporting this list with your contributions. Each and every one is greatly appreciated. If you want to support the list - use PayPal to send contribution -- https://www.paypal.me/stumurray
