1983 300D: Delvac1 5w-40 (winter, 5k) Delvac 1300 Super 15w-40 (summer, 3k), mann filter (from now on, I am going to use delvac 1300super year round, mixed 50/50 with delvac 1in the winter to allow better oil flow, but keep my moly coating, moly is only in 1300s, not d1)

1991 BMW 318i: Pennzoil long life 15w-40 (3000 mi), (may switch to mobil1 15w-50 instead for cold flow characteristics and longer drain intervals, but like the dose of moly in long life.. the jury is out on what Ill use next time), mahle filter

1998 Chevrolet S-10 ZR2: Castrol GTX 5w-30 (every 6mo or 3k) w/ wal-mart super tech filter (changed every 3mo.)

Mother's 97 Plymouth Breeze: Moibil1 5w-30 with 1-2 qts 0w-30 in the winter (3 months). (only gets driven 1/2 mi twice a day), supertech filter.

Father's 94 Toyota previa: Kendall 10w-30 (5-7000mi), OEM toyota filter

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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)