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  1. J

    What's the difference?

    Does anybody know the difference between the Valvoline Roush oil and regular Valvoline Synpower other than price? Is the Roush oil worth it? I have a 05 Mustang GT. Thanks
  2. J

    Switched to PP from RP

    First of all I'm new here...been reading for the past couple months and have learned a lot from you guys. I bought a 2005 Mustang Gt in August and did my frst oil change using RP in November. After reading several posts on here about PP I decided to make the change. I just PP 5w-20 in and...
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