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cahilc · 11-28-04, 06:27 PM

Boston,

Was the motor rebuild for mineral or synthetic oil ? There is a difference. Find out if possible.

Rememeber, synthetics were not popular until early 1990's. Most of our motors were build with the intention of running mineral oils.

For mineral I would recommend:

Cheron Delo 15w-40
Shell Rotella 15w-40
Pennsoil ??? 15w-40

All are diesel certified oils and have anit-soot charactersitics. Interesting to note that all are 15w-40 weight too. Basically heavy truck oils.

If you run synthetics be careful of pressure, having enough of it. Synthetics are a lot slicker for the same weight oil, sometimes an advantage, but give up anit-soot characteristics, cleaning.

Cheers,
Cahil

11-28-04, 06:27 PM	#17
cahilc IH8MUD Addict Join Date: Mar 2004 Location: Silver Spring, Maryland & Daytona Beach, Florida Posts: 811	Boston, Was the motor rebuild for mineral or synthetic oil ? There is a difference. Find out if possible. Rememeber, synthetics were not popular until early 1990's. Most of our motors were build with the intention of running mineral oils. For mineral I would recommend: Cheron Delo 15w-40 Shell Rotella 15w-40 Pennsoil ??? 15w-40 All are diesel certified oils and have anit-soot charactersitics. Interesting to note that all are 15w-40 weight too. Basically heavy truck oils. If you run synthetics be careful of pressure, having enough of it. Synthetics are a lot slicker for the same weight oil, sometimes an advantage, but give up anit-soot characteristics, cleaning. Cheers, Cahil __________________ ..... 67 Red FJ40 - SBC, Holly, NV4500, SOA 87 Blue FJ60 - Cummins 6BT, NV4500, OME, SUA ..... coupla' parts rigs too ...