T O P I C R E V I E W
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erccobra
Member # 1112
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posted
i have had regular oil in my car and synthetic ,i did not notice any change ,,,now i just read a post it said once you go to synthetic you cant go back ,,is this true
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st5150
Member # 51
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posted
That is a myth. Mobil 1 dispels this myth in their oil FAQ on their web page.
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