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2010 Prado 150 series V6 Petrol oil viscosity recommendation.

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  • 2010 Prado 150 series V6 Petrol oil viscosity recommendation.

    Hi
    looking to change the oil in my 2010 Prado 150 series V6 Petrol.
    Any suggestions on the oil brand & viscosity.
    penrite suggestion 5w30 is that to thin.
    Toyota service centre use 10w30
    Does it have to be synthetic.
    I have had a look at the FJ cruiser forum they use 0w20
    Thanks

  • #2
    what does your owners manual specify?

    Comment


    • #3
      Manual specifies 5w30, but was told by a mechanic 5w is to thin for QLD heat,
      Mechanic advises to use 10w40.

      Comment


      • #4
        The manual should show different oil viscosities for different ambient temps as well as show the “generic” recommended viscosity. Your mechanic was spot on telling you 5w30 was too thin. Not that it probably applies to you but it will lead to increased engine wear over the life of the engine. It’ll shorten its life when it’s in the high kilometre range which is probably what Toyota are counting on to ensure the used Toyota’s don’t last as long without it costing a fortune to repair them, and increasing the likelihood of higher new car sales to satisfy their business model. Their non replacing of auto transmission fluid is testament to that. 10w40 is ideal for Qld for all seasons. In the future I’m sure we’ll see thinner engine oil viscosities specified for newer models because it’ll lead to premature engine wear. Toyota ultimately don’t want owners of their cars holding onto them for 15-20+ years as it’s bad for business.
        Last edited by Brett1979; 06-01-2021, 10:18 PM.
        2005 120 series V6 Grande, 2 inch susp lift (King/EFS combo), 32 inch MT’s, Safari Snorkel, rear diff lock, breathers, Light Force spotlights, UHF, dual batteries.

        Comment


        • #5
          The 5w part is not the problem, in fact it means that the engine will be well lubricated when you start the engine. You definitely don't want 20(0 or 5w20), its not suited to Australian conditions and is causing problems in new Prados. You probably should consider 40 and generally 10w40 is fine for Australian conditions, although if you have cold mornings the 5w40 is a good choice.

          This is a great video to explain what oil viscosity grades are all about https://youtu.be/IKdhgKUZhPA
          [B]Steve[/B]

          2010 Silver GXL Prado 150, D4D Auto, with a few non standard bits

          Comment


          • #6
            You’re right in saying the 5w part is not the problem. It’s the 30 part that is. The 30 in 5w30 is rated to 40 deg Celsius max. That’s kind of bad for Qld. Great for Canada and the northern USA though. Also great for increased engine wear on hot summer days in most of Qld. 10w40 is the go. Using a “30” oil in summer in Qld is like using running in oil for way to long. Unless your car is being started on cold mornings during a Stanthorpe/granite belt winter you can do without the 5w weight too.
            Last edited by Brett1979; 10-01-2021, 08:23 PM.
            2005 120 series V6 Grande, 2 inch susp lift (King/EFS combo), 32 inch MT’s, Safari Snorkel, rear diff lock, breathers, Light Force spotlights, UHF, dual batteries.

            Comment

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