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Be careful of the cheap stuff. Amsoil has a state of the art oil analyizing facility. They find that if the oil is filtered properly the oil will last almost indeffinately. Over the road use
of up to 40,000 miles between bypass oil filter changes, and over 300,000 on the oil proves the life of the oil. Only reason in this case the oil was changed the truck was sold, dealer tore it
down and found that all the parts were usable, with nearly a million on it.
Duane
----- Original Message ----- From: "Ernest Christley" <echristley@nc.rr.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Wednesday, January 21, 2009 4:20 PM
Subject: [FlyRotary] Re: Synthetic Oil
Duane Service wrote:
David, I am a lurker, for some time, but I enjoy the exchange. I have used Amsoil for over 25 years ,and never have had reason for disapointment. It is truly the finest line
of lubricants in the country. If you extend to the year, be sure to use their new nano-fiber filter. Filters down to 5 microns, no resistance to flow. Any of their products
will perform better tan their claims, they are conserative in any such
Duane Service
----- Original Message ----- From: "David Moyer" <davidm@remconinc.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Wednesday, January 21, 2009 2:52 PM
Subject: [FlyRotary] Synthetic Oil
Wondering what oil every one is running? I have been running Amsoil Fully Synthetic Oil in my vehicles and it has a life of 25,000 miles or 1 year. Has any one used this?
David Moyer
Cosmo 13B
RWS 2.17
Cozy MK-IV
Houston, TX
I run the cheapest stuff the parts store carries...but I change it out when I'm supposed to. Filtering out the super fine particles is a red herring. They're to small to affect anything. The biggest problem your oil has to deal with, especially with aero-engines, is the acidity build-up. There is no oil or filter, synthetic or otherwise, that will deal with the acid that comes from burning an organic compound that turns into water and CO2 over a long period. Especially, when you add in even the small amounts of sulfur known to accompany all fuels. It's the acid, not dirt, that kills engines.
At least that's what
-the Aeroshell expert at Sun'n'Fun
-and his data
-and everything I've ever learned
said.
-- http://www.ernest.isa-geek.org
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