Dan04COBRA
Team MF Member #420
Posts: 14534
Joined: 7/24/2003
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Total bull, 100% bull GmKiller331, I'd LOVE to read about that.
I suppose Ford suggested switching piston slapping Windsor motor oil from conventional to a quicker flowing on start-up synthetic for s**ts and giggles? I guess if some people prefer having dry cylinders because of thick, cold oil on start up...then so be it, metal on metal is actually good for your motor, over time it'll get lighter....  Why the hell are you running such a heavy oil in your motor? Hell, a 700HP big block race car I work on doesn't even run that. Thinner is easier to cool... 
"SYNTHETIC OIL: Rx FOR LONG ENGINE LIFE
by Curt Scott,
an article from: "The Complete Guide To Specialty Cars". |
"Those naysayers who only a decade or so ago prematurely dismissed synthetics as, "snake oil", are now among the staunchest devotees of laboratory-manufactured lubricants. Among these believers are top lubrication engineers, race car drivers, vehicle fleet operators, and millions of private motorists around the world. What factors have contributed to the growing enthusiasm for synthetic lubricants? Simply put, synthetically-produced lubricants have demonstrated beyond doubt that they are far superior to their conventional petroleum counterparts in fulfilling the many and varied tasks demanded of oil by today's modern engines and powertrains. Indeed, synthetic lubricant technology is swiftly progressing to a point where it is possible that engine wear may no longer continue to be the major limiting factor in the expected life span of motor vehicles."
"The first question demanding an answer is: Just what is synthetic oil? Technically speaking, synthetic lubricants are made by chemically combining, in a laboratory, lower-molecular-weight materials to produce a finished product with planned and predictable properties. Don't be confused by this technical double-talk. What this means is that synthetics are custom-designed products in which each phase of their molecular construction is programmed to produce what may be called "the ideal lubricant." This process departs significantly from that of petroleum lubricants, whose physical components, both desirable and undesirable, are inherited from the crude oil from which they are refined.
Crude oil possesses thousands of varieties of contaminants, depending upon the oil's geographical and geological origins, which no amount of refining can entirely remove. Corrosive acids, paraffins and other waxes, heavy metals, asphalt, napthenes and benzenes, as well as countless compounds of sulfur, chlorine, and nitrogen, remain in the finished product.
Equally as important, petroleum oil molecules, as contrasted to uniform-sized synthetic oil molecules, vary significantly in size, shape and length. When your engine heats up, the smaller molecules evaporate, while the larger ones tend to oxidize and become engine deposits. As a result, refined petroleum lubricating products differ widely in their overall quality and performance. The presence of and the resulting drawbacks of these undesirable constituent elements lie at the very root of the considerable performance differences between synthetic and petroleum based motor oils."
"Chief among the areas in which the pre-planned and predictable properties inherent in premium synthetic lubricants significantly surpass those of premium petroleum oils are: low-temperature fluidity...and thus improved ambient startup protection; low volatility, (higher boiling point...greater resistance to evaporation); high-temperature thermal stability; oxidation resistance; lubricity; fuel economy; film strength and wear protection; extended drain capabilities; water stability; and high natural detergent characteristics, (resulting in a cleaner engine with less additive content)."
"For the purposes of comparison, we have taken a well-known synthetic engine oil, Amsoil 10W-40 synthetic, and contrasted its characteristics with those of several prominent 10W-40 conventional motor oils. Below is a condensed summary of the results of several closely-monitored field and laboratory tests:
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Amsoil 10W-40
100% synthetic |
Petroleum
10W-40 |
1. |
Effective lubrication range |
-60 F to +400 F |
0 F to 300 F |
2. |
Viscosity increase after single sequence, (64hour), Olds III-D Test |
9% |
102 to 400% |
3. |
Wear, (mg. weight loss Falex test) |
1.1 mg. |
3 to 6mg. |
4. |
Fluidity @ - 40 F |
Flows freely |
Solid |
5. |
Volatility, (evaporation @ 300 F for 22 hours) |
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Printable Version
What motor oil? - 
