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Dave Yes the Continental engines were built for the use of straight mineral oil without any additives. But there are additives that are giving a huge advantage to straight mineral oil. That are corrosion inhibitors, friction modifiers and additives for low temperature. Still a straight oil, it is acting much safer for the engine. I don't know what automobiles used in the 40ties, but they did not use what cars are using now. The reason to keep the contaminants in suspension is to be able to transport them to the filter. The disadvantage is that if you don't have a filter, the particles will be pumped through the engine over and over again. If the contaminants would not be in suspension and rather collect in the sump, they would not be able to cake at the hot spots... That's why I think that a filter is a good idea when using detergent oils. Hartmut ----- Original Message ----- From: "David Douglas Winters" <[EMAIL PROTECTED]> To: "'Walt Uebele'" <[EMAIL PROTECTED]>; "'Charles Reno'" <[EMAIL PROTECTED]>; "'Coupers Tech'" <[email protected]> Sent: Tuesday, December 06, 2005 7:10 PM Subject: RE: [COUPERS-TECH] Questions about oil > ----[Please read http://ercoupers.com/disclaimer.htm before following any advice in this forum.]---- > > > Hey all, > > Was not the Ercoupe built before there was such a thing as "aviation > oil"? Are we not starting to project modern technologies on old engines > that were never designed to use or need them? Did the Coupes not use the > same oil as automobiles? > > And > > Doesn't detergent just keep solid contaminants in suspension to keep it > from caking, without effecting the performance of the oil screen (or of > an oil filter?)...an added advantage in ANY engine? > > Just asking. > > Dave Winters > 2797H > > -----Original Message----- > From: Walt Uebele [mailto:[EMAIL PROTECTED] > Sent: Monday, December 05, 2005 5:25 PM > To: 'Charles Reno'; 'Coupers Tech' > Subject: RE: [COUPERS-TECH] Questions about oil > > ----[Please read http://ercoupers.com/disclaimer.htm before following > any advice in this forum.]---- > > > Charlie, > Nah, I knew someone that did that with his car, found out the hard way > that > liquid cooled engines will coke aviation oil. First thing that wore out > was > the lobes on his cam shaft. Remember that aviation oil is also > formulated > for different operating temperatures too. > > Walt Uebele > 1946 415C > N94113 > > -----Original Message----- > From: Charles Reno [mailto:[EMAIL PROTECTED] > Sent: Monday, December 05, 2005 12:28 PM > To: Wayne; [email protected] > Subject: Re: [COUPERS-TECH] Questions about oil > > ----[Please read http://ercoupers.com/disclaimer.htm before following > any > advice in this forum.]---- > > > Does it seem wise to "recycle" 25 hour old airplane oil with additive > through my Ford 8N tractor? > Charlie 6363V at CGF > > ----- > Subject: Re: [COUPERS-TECH] Questions > > > > ----[Please read http://ercoupers.com/disclaimer.htm before following > any > > advice in this forum.]---- > > > > > > David:: > > Diesel engines are high compression, and subject to temperature > conditions > > > that do not apply to aircraft engines. The best oils for these low > > compression, slow turning engines are the Aeroshell 100, 50 weight, > single > > > viscosity Ashless dispersant oils. Normally Mineral oil is used > during > > the " > > > ======================================================================== > === > = > To leave this forum go to: http://ercoupers.com/lists.htm > Search the archives on http://escribe.com/aviation/coupers-tech/ > > > > ======================================================================== > ===== > To leave this forum go to: http://ercoupers.com/lists.htm > Search the archives on http://escribe.com/aviation/coupers-tech/ > > > > > > ============================================================================ == > To leave this forum go to: http://ercoupers.com/lists.htm > Search the archives on http://escribe.com/aviation/coupers-tech/ > > > > ============================================================================== To leave this forum go to: http://ercoupers.com/lists.htm Search the archives on http://escribe.com/aviation/coupers-tech/
