300SD, 229,xxx miles...and runs ok on rotella syn 5w40

W124 300D, 254,xxx miles on mobil 1 5w40 and is faster then my moms TDI

W123 300D, (dads) 440,xxx miles and runs like a top on mobil 1 5w40

__________________
Current:
05 E320 CDI
07 GL320 CDI
08 Sprinter
05 Dodge Cummins
01 Dodge Cummins

Previous
2004 E55 AMG
2002 C32 AMG (#2)
1995 E300
1978 300D
1987 300D
2002 C32 AMG(blown motor :[
1981 300SD
1983 300SD
1987 300SDL
2002 Jetta TDI
1996 S420
1995 S500
1993 190E 2.6
1992 190E 2.3
1985 190E 2.3 5-Speed