If you are buying an older one, definately investigate the head gaskets as stated earlier.

A well maintained 2.5L should last well past 200k.

I had both the 2.2 and the 2.5. I liked my 2.2 WAY BETTER than the 2.5. 2.2 is a much peppier engine. I got rid of mine when it started rotting away. I think it had 260,000+ on it and it still ran great.

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'85 300SD (formerly california emissions)
'08 Chevy Tahoe
'93 Ducati 900 SS
'79 Kawasaki KZ 650
'86 Kawasaki KX 250
'88 Kawasaki KDX200
'71 Hodaka Ace 100
'72 Triumph T100R