Re: Oil weight
When I worked with earth moving heavy equipment it was common practice on the inline 6 cylinder Cat motors to pour in 2 gallons of diesel at idle and let it idle a minute of two, then shut it down and drain it. These motors took oil by the gallon, not quart, and that was what the boss told me to do, so we did.
This was in the late 80's and some equipment was from post WW2 (1946ish) and used for 10-12 hours daily. We never had a problem I'm aware of.
As far as type of oil...I'm sure this is right up there with the Blonde vs Brunette vs Redhead discussions...or Ginger vs Mary Anne.
Guess I'll have to track down the previous owner and see what he used.
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