[Julesandtrish]

Originally Posted by cssnms

There are some differences in order to account for ULSD. However, those changes do not protect fuel pumps and the like from poor quality/low lubricity fuel.

"The Engine Manufacturers Association had requested a standard of a wear scar no greater than 460 microns, typical of the pre-ULSD fuels. Most experts agree that a 520 micron standard is adequate, but also that the lower the wear scar the better."

Hence why I prefer to add an additive.

Amen brotha!