Motorcraft Mix ???

mer

Joined
Dec 7, 2008
Messages
30
Location
ILL
I have a ample supply of Motorcraft oil,syn-blend & full synthetic,any thing WRONG with a 50/50 mix of 5w20 blend & full synthetic for a 2003 f-150 5.4 triton ???
 
Joined
Apr 17, 2006
Messages
19,528
Location
Lake Forest, CA
Nothing bad will happen to your engine with mixing MC oils. But, if you have plenty supply of each for an oil change why don't you use syn-blend for spring&summer and full synthetic in fall&winter ?
 
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