Originally Posted by newhaul
Its on a truck forum but diesel is diesel
It is, sort of.
Those are common rail Diesels, specifically the Duramax. Anyway the early Duramax engines suffered injector problems. I paid $3,500 (parts cost) for a set of injectors and it took most of a weekend to replace them, they are buried inside of the head
to reduce noise
. Stock fuel pressure on this common rail is around 30,000 PSI I believe and when we Hot-Rodded them we pushed pressures to 50.000 PSI, and at those ridiculous pressures, lubrication becomes an issue.
But most of our boats aren't common rail, have far lower fuel pressure and fuel cleanliness is the big thing that wears parts
on our fuel injection systems.
What interested me in that article is that the best lubricant by far I believe was Bio-Diesel, makes me feel a little better about burning Bio when I can get it.