Best full synthetic 5w40 for 2012 for the money?

Discussion in 'Gen 3 Prius Main Forum' started by nudriver, Feb 4, 2021.

  1. nudriver

    nudriver Member

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    What's your vote boys?
     
  2. ozmatt

    ozmatt Active Member

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    Anything full synth it doesn't really matter mate just steer clear of oil promoting zinc because its known to clogs cats

    Posted via the PriusChat mobile app.
     
  3. ASRDogman

    ASRDogman Senior Member

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    Castrol, Mobil One, Havoline, pretty much any major brand.
    Probably should stay away from off the wall brands.
     
  4. Grit

    Grit Senior Member

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    Amsoil signature series.
     
  5. Leadfoot J. McCoalroller

    Leadfoot J. McCoalroller Senior Member

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    It's going to be hard to find a bad choice- lots of strong competition in that grade. I would avoid Shell Rotella and other ZDDP-enriched oils.

    That 1.8L engine likes to burn oil and when you burn ZDDP-enriched oil in a gasoline engine you wind up ruining the catalyst faster than normal. In a Prius under CARB rules in California that's an expensive problem, not something you want to mess with.
     
  6. bettergolf

    bettergolf Active Member

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    Key words in the question here....."for the money". Nobody has mentioned cost at all...I know, I know...don't sacrifice a few bucks on the life of your car.....but that wasn't the question.
     
  7. sam spade 2

    sam spade 2 Senior Member

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    Why that choice of weight ?
    If you need 40 because of high oil usage, there is no need for a 5 lower number.
    A 15W40 would be easier to find and might be less expensive too.
    A "high mileage" variety might be good.
     
  8. Grit

    Grit Senior Member

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    Any oil that has zinc excess over 700-800 ppm is not certified by api nor gets the seal on the label oil bottle.

    For OP Just go with Toyota oem 0w-20 since drive climate and mileage is not to be shared.
     
  9. Mendel Leisk

    Mendel Leisk Senior Member

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    I’m getting that in bulk, through dealership, very good price, around $3 CDN per litre. Bring a sturdy 10 liter gas can, usually get 9 litres (doing two cars).
     
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  10. Grit

    Grit Senior Member

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    opposite, I buy individual quarts because it’s cheaper by the unit. Redline by the gallon is more expensive compared to 6 or 12 quart package. And the zinc is within 1,200 ppm :LOL:
     
  11. Mendel Leisk

    Mendel Leisk Senior Member

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    Just checked receipts: they’re charging me $2.80 CDN per litre (about $1.98 USD per US quart). Probably their cost? I appreciate it’s a sweetheart deal.
     
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  12. magnumrtawd

    magnumrtawd Member

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    My local shop changes my 0-20 full synthetic every 12mo.or 10,000 mi. rotates and balance tires for 39.95 . Don't know or care what brand of oil they use!
     
  13. orenji

    orenji Senior Member

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    Mobil 1 oil weight 0W-40 has been great, No oil usage and at 120k miles.
     
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  14. t_newt

    t_newt Active Member

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    Since this question was about cost:
    The Project Farm Youtube channel did a test of synthetic engine oils. He didn't test 5W-40 but the results may apply to that viscosity too.

    AmazonBasics did very well in his tests.
    Here's another test he did that included AmazonBasics.

    For fun, he also has videos where he tries WD40, vegetable oil, and even banana oil in an engine to see how it does.
     
  15. nudriver

    nudriver Member

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    What do you mean "likes to burn oil"? Is my Prius typical in the fact that it's burning oil?
     
  16. nudriver

    nudriver Member

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    I have a follow up question. I have messed up piston rings and my car burns oil. I don't know what the oil type is supposed to be, but my mechanic is telling me to buy 5W40. I believe it's because he thinks a thicker oil is necessary to preserve engine life. Is this safe?
     
  17. Grit

    Grit Senior Member

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    depends on your driving climate, seasonal temp changes and how you mash the gas pedal before engine gets to 150F. If your up north and it’s snows, 5w-40 would choke your engine on non highway driving.
     
  18. ASRDogman

    ASRDogman Senior Member

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    Thicker oil will help a little, but, it will make the VVT work harder, or not correctly.
    You could try the BG products that are supposed to remove the gunk from the rings and other
    engine parts. Some say they have noticed a difference.
     
  19. nudriver

    nudriver Member

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    What's VVT?
     
  20. nudriver

    nudriver Member

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    I drive in a warm climate mostly.
     
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