Does it really matter whether synthetic blend/full synthetic or conventional oil on oil change?

Discussion in 'Generation 1 Prius Discussion' started by peripatetic pri, May 14, 2026 at 7:18 PM.

  1. peripatetic pri

    peripatetic pri Junior Member

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    HI! Where I am there's a $46 diff in price betw convention oil and full synthetic. Just want to know what others think - worth it to spring for extra $46 or get a synthetic blend?
    Thanks!
     
    #1 peripatetic pri, May 14, 2026 at 7:18 PM
  2. Trombone

    Trombone Active Member

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    I'm using Castrol Edge 5W-30, the high-mileage version, and have done for years (I do my own oil/filter changes). IMO it's worth paying whatever the price difference is, and that little 4-cylinder mill seems to thrive on it. Don't know how much longer I can keep on getting down under there to do the work (and getting up is the real fun!), but as we say in PA Dutchland, "May things never change!"
     
    #2 Trombone, May 14, 2026 at 7:42 PM
  3. Tombukt2

    Tombukt2 Senior Member

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    Just change your 5:30 oil and you be good don't sweat it at all even on a 20 plus year old car . The car appreciates you changing it.
     
    #3 Tombukt2, May 14, 2026 at 7:43 PM
  4. vaughnstark777

    vaughnstark777 Member

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    I can’t even find non synthetic 5/30 oil anymore.
     
    #4 vaughnstark777, May 15, 2026 at 12:27 AM
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