I can't reply to the oil/salts issue, but having spent nearly 20 years with electroplating, chemical milling processes engineering disciplines, and the related 'waste' treatment issues, you may not necessarily wind up with a "salt" if all you are doing is filtration. There are compounds that can be used to neutralize acidic conditions without creating a salt. One could also use filtration/treating methods that will remove combustion by-products without creating 'salts'... they are just really, really, really, expensive (no big deal if you are talking about a few hundred (10's?) of gallons of oil that you need to get 'years' out of.
Back in the mid '60's an anecdotal issue mentioned by my dad was that, on a flight to where ever, he wound up next to a chemist that worked for a major oil refiner who said (in essence) if you change the filter regularly, as long as you don't drive the oil beyond the max rated operating temperature, you don't need to change it... ever. Don't take my word for it, do some research. -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of smwood Sent: Monday, March 30, 2009 9:00 PM To: [email protected] Subject: KR> Re: Lubricating Oil Expected Life Did the ferry boat engine mechanics mention anything about neutralizing the acids that might form in the engine oil due to combustion processes? If so, what do they do about the salt that forms as part of the acid neutralization process? Sid Wood Tri-gear KR-2 N6242 Mechanicsville, MD, USA [email protected] --------------------------------------------------------- >Just for informational purposes ! There are huge auto ferries that travel e: 03/28/09 07:16:00
