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Old 08-19-2017, 04:02 PM   #6
gfong
Greg Fonger
 
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Join Date: May 2004
Location: Ontario, Canada
Posts: 3,416
Re: Valvoline synthetic 75w-140 plus Ford friction modifier?

I use just regular non syn in my Detroit TrueTrac that is why I do not use the Syn or modifier anymore.
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