Posted by jdemaris on November 22, 2013 at 14:08:54 from (70.194.6.10):
In Reply to: synthetic oil posted by trees15301 on November 22, 2013 at 11:26:44:
#1 I guess you'd want to ask yourself what the potential benefits might be.
#2 How many people know what they are buying when they buy oil that says "synthetic" on the label?
The main gain to real synthetic oil is the super high Flash Point. Often over 450 degrees F. A lesser possible gain is a stable viscosity is case you need to run your tractor a lot at 30 below zero F (which I doubt).
In regard to actual lube and metal wear protection? Much is about the additives and not if real synthetic, bogus synthetic, or petroleum.
By the original definition - synthetic oil is/was oil made from a non-petroleum base. MANY oils sold in the USA as "synthetic" are made from a 100% petroleum base. Pure marketing BS as I see it.
Adolph Hitler used true synthetic successfully during WWII due to lack of access to petroleum. It was found that the new synthetic oil had far better heat resistance then petro oil (Flash Point). The US military copied the product and used it in jet engines (where heat was a problem). Years later - a military guy marketed the stuff to civilians as "Ammsoil." He was jet pilot and commander Colonel Albert J. Amatuzio.
Now? There are many oils sold as "full synthetic" that give less high heat protection then many conventional petro oils. I don't see the point?
Next time someone tells you how much they love their so-called "synthetic oil" - ask specific questions.
Note that true synthetic oil is still available and mostly used in off-road and racing. It still has that very high flash point and stable viscosity. Shell Rotella T conventional oil has a higher Flash Point then many oils sold as "full synthetic." Here are a few Flash Point ratings of various oils. Highest to lowest.
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Today's Featured Article - What Oil Should I Use? - by Francis Robinson. I keep seein this question pop up over and over again in discussion groups all over the web. As with many things there are often several right answers and a few wrong ones. Some purist I'm sure will disagree to no end with what I will tell you but most of us out here in the real world don't really care do we ? Some of them only bring their noses down out of the air long enough to look down them anyway. If you are like me you are only doing this old tractor stuff because you enjoy it. You
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