agesilaus wrote:
Let me say I'm no automotive engineer, I was going on posts like this:
ack of lubrication is a universal problem in the diesel world - older vehicles weren’t built to run on ultra low sulfur diesel (ULSD) and new vehicles are built with extremely tight tolerances, producing higher pressure and temperature, making the lack of lubricity possibility catastrophic. Every single diesel engine injection system relies on diesel fuel as a lubricant to protect and lubricate all the moving parts within the fuel system including injectors, in-line pumps and injection pumps. If the lubrication of the fuel isn’t good enough, the internal components begin to wear against themselves and can fail from excessive wear.
post
yes, before ULSD the fuel pumps relied on the sulphur for some lubrication. it was for the high pressure fuel pump, and injectors, not the valves.
However any diesel sold afer about 2005 is designed for ULSD
