I found this tip on the Reliabilityweb.com site. Lubrication Tip, Rule of Thumb: The service life of petroleum based oil is specified as 30 years @ 85 degrees F (30 degrees C) 15 Years @ 104 degrees F (40 degrees C) 3 months @ 212 degrees F (100 degrees C) For every 10 degrees F (10 degrees C) oil temperature increases, the lubricants expected life is halved Tip from Lubrication for Industry by Kenneth Bannister (Industrial Press)
My conclusion is: Engine oil wears out due to high temperature ageing effects...but, you already knew that, right? Sid Wood Tri-gear KR-2 N6242 Mechanicsville, MD, USA smw...@md.metrocast.net
