oil question

From: Mark MacHale (mmachale@garfieldre2.k12.co.us)
Date: Tue Nov 20 2001 - 13:19:18 EST


I want to try a synthetic oil in my 4.7, but I can only find 10w30. Book
calls for 5w30. The last thing I want is to get worse gas mileage. What do
you think?

Mark



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