question about the over drive (O/D) setting.?

Robert M.

New member
I have a 2005 Ford Focus and I have had no problems with is. but I have never understood what is dose, and is it good to leave it on all the time or when to turn it off.
Lover, thanks! I live in Oklahoma so I guess I can leave it on and not consern my self with this. my only consern was if it could couse any damage to the engen or anything else.
 
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