The 93 and 49/H8 from Advance are the same size, but the 93 is actually 850CCA and 150RC, while the H8 is 760CCD and 160RC. Generally I prefer lower CCA and higher RC for a more robust battery, though others feel otherwise.

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Current Diesels:
1981 240D (73K)
1982 300CD (169k)
1985 190D (169k)
1991 350SD (116k)
1991 350SD (206k)
1991 300D (228k)
2008 ML320 CDI (199k)
1996 Dodge Ram CTD (442k)
1996 Dodge Ram CTD (267k)

Past Diesels:
1983 300D (228K), 1985 300D (233K), 1993 300D 2.5T (338k), 1993 300SD (291k)