[C320-list] Perkins M30 - Recommended Oil Viscosity?

[Gary Magnuson]

When I bought Time A Weigh, in 2006 as my forst exposure to Diesel 
maintenance, I sought the advice of our maintenance technician for the 
emergence generator units supporting our Telecommunications offices in 
Illinois.  No discussion. Rotella T heavy duty  SAE 15W - 40.  I 
wouldn't use anything else.  Many others have confirmed that opinion 
since then.    Be sure the engine is warmed up before your suck out the 
old oil.  You can draw it out through the dip stick tube and also use 
the oil plug tube on the starboard side.

Good luck,
Gary Magnuson
Time-A-Weigh  #205
> About to charge the oil, but I find that the Perkins Spec sheet does not specify the recommended engine oil viscosity (e.g., 10-30, etc.).  Can some of you with the M30 let me know what your running.  This is a SoCal boat if that makes a difference.  Thanks much!
>   
> Don Johnson
> Hull # 53
>