Jock Rogan wrote in a message to Charles Bowman:
 JR> If it is only used as a "back-up" oil use v corrosion might be
 JR> worth the cost. 
For a backup generator you're probably right, I must have missed
that earlier in the thread.
 JR> Personally, I would use a small two cylinder four stoke motor and
 JR> feed it LPG. 
That's sounds like a winner, actually I don't think you'd want
it turning anywhere near 1800 RPM, somewhere between 800-1200
would probably be much more pleasant to the ears.
 JR> But that wasn't the original quiry.
No, but I'm finding it highly informative.  Thanks.
  cbowman@sinfo.net or charles.bowman@for-president.com
... Bill of Rights, void where prohibited by law. 
--- Question Authority
---------------