THE DEALER USE 10-30 IN THE 4.7. AT LEAST MINE DOES, AND I USE IT ALSO..
----- Original Message -----
From: "Mark MacHale" <mmachale@garfieldre2.k12.co.us>
To: <dakota-truck@buffnet.net>
Sent: Tuesday, November 20, 2001 10:19 AM
Subject: DML: oil question
> 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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