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0w-20 and 0w-16, way too thin. 5w-20 or 5w-30 instead?

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by Priipriii, Sep 16, 2023.

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  1. Paladain55

    Paladain55 Active Member

    Joined:
    Oct 20, 2021
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    Location:
    The South
    Vehicle:
    2010 Prius
    Model:
    Two
    The long 10,000 mile oil changes clog the rings leading to planned obsolescence. Typically starts to burn 1-2 quarts every 10k before the cars hit 100k miles and holds pretty even until like 150-200k when the car clogs the egr and blows the head gasket.

    But the oil flush can effectively unclog the rings.

    I did a piston ring soak instead on mine and got my oil consumption back down. Now I just change every 5000 miles to avoid clogging the rings. I burn around 10oz every 5k at 225k miles.

    If you look at the oil range charts the car can run 0w-16 to 20w-50 depending on where you bought your gen 3 and temperatures.

    *When i had clogged rings, 0w-40 burned the same amount as 0w-20. Not a large difference, just a small fuel economy bump.

    Safe bet: Use whatever oil your heart desires if it agrees with the temp range and change every 5000 miles.
     
    ColoradoBoo likes this.
  2. Sonic_TH

    Sonic_TH Active Member

    Joined:
    Mar 18, 2020
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    Location:
    Puerto Rico
    Vehicle:
    2012 Prius c
    Model:
    One
    What mileage your 2012 Prius C had? never heard of one burning oil.