There are plenty of folks on this forum who know much more about this than I do, but ------- from what I've read, that particular series of engine (post '85) may have had a bit of trouble with the aluminum head and overheating. You could probably do a search and check this out. I do know that my '83 is a great vehicle. Beyond that, I only know what I read on this forum.

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John Schroader
bio burnin' 83 300D, '83 300 SD, '79 240D
"I've never met a man who was good at making excuses who was good at anything else" Ben Franklin
"You cannot permanently help a man by doing for him what he could and should do for himself" Abraham Lincoln