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  1. B

    Synthetic oil

    Thank you all for your input ....
  2. B

    Synthetic oil

    My research on the values of syn oil tells me that it benefits the engine... Particularly with reference to better gas mileage. Because it lasts longer ,ie. I can travel twice as far between oil changes. I drive about 40 miles per day highway and 10 miles per day city . Twice a month I do 80...
  3. B

    Synthetic oil

    I just bought the car and it has always used Regular Valvoline oil .
  4. B

    Synthetic oil

    I have a 1998 Volvo S70 with 202,400 miles on it. My mechanic tells me that because of the High miles ,I should not switch to a synthetic oil . True or False ? Thanks
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