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Engine's burning oil - how much longer will it last?

64 messages, Last post on Sep 04, 2007 at 7:35 AM
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Replying to: isellhondas (Oct 26, 2005 4:05 pm) |
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The Chevy I had was a '62 Impala SS with a 300 HP 327. Beautiful car that just liked a quart of oil once in awhile.
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Replying to: isellhondas (Oct 28, 2005 12:37 pm) |
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| When I was a kid I was once so broke I had to buy brake shoes at a junkyard! | |
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Replying to: andys120 (Jul 02, 2005 12:54 pm) |
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Replying to: wtd44 (Oct 25, 2005 7:40 am) W does not stand for weight, it stands for winter, meaning that an oil with a W is suitable for use in winter.
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Replying to: squeekusa (Jan 23, 2007 4:09 pm) W does not stand for weight, it stands for winter, meaning that an oil with a W is suitable for use in winter." Ummm, no. You have it exactly backwards. 10W-60 oil is a 10 weight oil ("W" does NOT stand for winter) that is stable enough that when hot it only thins out to the viscosity of a straight 60 weight oil. There are two methods of stabilizing thin oils (take your pick, 0W-30, 0W-40, 15W-50, 10W-60... it doesn't matter). The first is to add what are generally termed "Viscosity Improvers" (VIs), and the second is to produce an oil from a fully synthetic base. Most middle of the road oils (Motorcraft 5W-20 for instance) use some synthetic PAO and some VIs to achieve the desired result. FWIW, while formulations are a tightly kept secret by all manufacturers, it is believed that some oils, Mobil 1 0W-40 for instance, are formulated with such a high quality PAO base that they need no VIs to achieve their classification. Best Regards, Shipo |
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im here just want to learn more about car but i think it will be easy for me to learn it because i really know nothing about this, any word from you will make me progress thank you very much |
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Replying to: shipo (Jan 30, 2007 9:41 am) Kinda. They are two separate measurements. The "W" may as well stand for winter as it is valid only in comparison to other "W" or cold measurements. Yes, of course the oil thins when it warms up, though.
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Replying to: bkrell (Apr 14, 2007 8:44 pm) Sorry, the "W" never has and never will stand for "Winter". As for your assertion that the "W" number is only good for comparison to other "W" numbers, not true either. It is as I stated before. A 10W-60 will flow like a 10W straight weight oil when cold and like a 60W straight weight oil when up to operating temperatures. Best Regards, Shipo
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