Wasn't there a similar problem with older engines when the tetra-ethyl Lead disappeared from gasoline?
AT the limit it meant replacing valves and valve guides. Could not the same sort of thing be done with diesels? Or is that some of the farm equipment is so antiquated that nobody makes parts anymore?
Yes, there was a problem with valve guides and seats and un-leaded fuel.
Apparently with the tractors, it's not just the old ones, it's the new diesels too. Sorry I have no details, just a conversation I had.
That is weird. The low sulphur thing is getting on for 10 years ago now isn't it? I gasoline, don't when it happened in diesel in NA. I remember in the '90s on holiday in France suddenly one year the smell of burnt diesel disappeared and here in the late '90s from my office in Richmond Hill the yellow sky over TO got much less yellow over a couple of years.
Now I know when road fule lost its sulphur here in Canada that diesel for trains, stationary engines and maybe farm equipmnet was allowed higher amounts for a year or two " to synchronize with the USA" where, IIRC the trucking industry was fighting a losing lawsuit against having to pay a few cents more per litre.