Re: mobile 1

Built_Well · 2007-10-08T03:52:39+00:00

[Please pardon a possible duplication of this message.]Mark A., again, your thinking is very old-fashioned whenit comes to comparing 0w-30 to 5w-30. As I said, you shouldconsider doing some current reading about the 2 viscocities.Dr. A. E. Haas, a Florida physician and surgeon who hasresearched fluid dynamics for decades, has written the following:"I know a person is confused when they say that a 0W-30oil is too thin for their engine because the old manual saysto use 10W-30. This is wrong. The greatest confusion is becauseof the way motor oils are labeled. It is an old system and isconfusing to many people."Mark A., Doctor Haas, who has studied viscocity and fluid dynamicsfor decades, continues:"It is time to dispel the notion that 0W-30 oil is too thinwhen our manual calls for 10W-30. A 0W-30 is always thebetter choice, always. The 0W-30 is not thinner. It is thesame thickness as the 10W-30 at operating temperatures. Thedifference is when you turn your engine off for the night. Bothoils thicken over the evening and night. They both hada thickness, a viscosity of [about] 10 when you got home andturned your engine off. That was the perfect thickness forengine operation.""As cooling occurs and you wake up ready to go back to work thenext day the oils have gotten too thick for your engine to lubricateproperly. It is 75 F outside this morning. One oil thickened toa viscosity of say 90. The other thickened to a viscosity of 40. Bothare too thick in the morning at startup. But 40 is better than 90.Your engine wants the oil to have a thickness of 10 to work properly.You are better off starting with the viscosity of 40 thanthe honey-like oil with a viscosity of 90.""I repeat: More confusion occurs because people think in terms of theoil thinning when it gets hot. They think this thinning with heat isthe problem with motor oil. It would be more correct to think thatoil thickens when it cools to room temperature and THIS is the problem.In fact this is the...

Oct 08, 2007 41 Replies

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Mark A 18 years ago

Sorry, I did not notice the cross post. I assumed that all cross posters have drawn and quartered by now.

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Steve 18 years ago

Sorry, I don't drink cult Kool-aid anymore.

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