Duramax Lifetime Supporter
Join Date: Oct 2016
Location: Maurice, LA
The VERY best additive to add lubricity is to buy yoru fuel from a station that has Bio in it. Even B5 adds more lubricity than any other additive you can buy.
In addition it is an excellent fuel system cleaner.
2008 Silverado 2500HD CCSB LTZ Diesel
FASS 95 Lift Pump (with Baldwin filters), Edge Insight CTS Monitor on a Windshield Mount, Nicktane Fuel Filter Adapter w/ CAT 306-9199 UHE tertiary fuel filter, Bilstein 5100 Stock Height, Bushwacker Bed Rail Caps, AMP Research Bedstep, Fumoto oil drain valve, Dorman PS Oil cooler, Pioneer AVIC 7200NEX GPS/Stereo, Air Lift LoadLifter 5000 Air Bags.