Steve Barker LT wrote:
....

And any other diesel engine you can come up with that has glow plugs.
....

Well, guess that's one definition. Not a very useful, one, but one
nonetheless...

Of current production, don't know directly other than the JD 5-cylinder
used in their utility tractors (up to roughly 50 hp I'm guessing,
maybe?) That they have been replaced w/ direct start w/ usually ether
injection combined w/ block heaters for cold weather doesn't mean they
weren't a significant alternative until fairly recently (10-15 years or
so)...

--