Given a choice...Pick one...!

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If you had nothing else, only 0/5W20 or 15W50, what would YOU! use, and why? PS: It's summer (in N.Amer. at least...)and getting hotter by the week...!
 
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So long as the ambient temp is above 10F I would go with the 15W50! It is going to be less volitile and should protect better under sever conditions. The 15W50 should also have a better additive package. Last I just will not run a 20Wt reguardless of if it has a 0 or 5 W proceeding it! This question a loaded questionthough because idealy we could use more information. If warranty is an issue then the 15W50 may cause you grief if their ever was an issue with the engine.
 
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If I had a modular Ford design type engine, M1 0-20. Everything else, M1 15w-50. But remember, I live in the deep south and have a depleated uranium right foot. [ May 29, 2004, 08:46 PM: Message edited by: 427Z06 ]
 
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