R Ron Joined Jun 19, 2002 Messages 113 Location Santa Fe,N.M. May 18, 2006 #1 Nobody who cares would use 5W-20 in a Mazda!Would they?
Bryanccfshr Joined Oct 9, 2004 Messages 6,732 Location New Braunfels May 18, 2006 #2 It is certain to self destruct at 399,999k miles.
D Drew99GT Joined Oct 11, 2002 Messages 22,216 Location Colorado Springs May 18, 2006 #3 The owner of this site woudn't!
Bryanccfshr Joined Oct 9, 2004 Messages 6,732 Location New Braunfels May 18, 2006 #4 Not in a diesel he wouldn't.