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oil: phillips vs aeroshell

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greenbaron

Well-Known Member
Joined
Oct 23, 2010
Messages
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Do you consider Phillips XC 20W50 and Aeroshell multigrade 15W50 to be basically interchangeable? Have always put Aeroshell in my engine, but recently picked up a case of Phillips (by mistake, really) and wondering if it really matters? In terms of an oil change, that is. Not adding one to the other...
 

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