Is "high mileage" oil bad?
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This is a discussion on Is "high mileage" oil bad? within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; It's all I can find in 10W40 synthetic....

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    Registered User mmiller2002's Avatar
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    Is "high mileage" oil bad?

    It's all I can find in 10W40 synthetic.
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    He simply abides. SD_GR's Avatar
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    Quote Originally Posted by mmiller2002 View Post
    It's all I can find in 10W40 synthetic.
    No, it's fine.

    You could also look for a 5W-40 synthetic and use that year-round in your area. Shell and Mobil both make this. The Shell is usually very well priced.
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    Registered User mmiller2002's Avatar
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    Quote Originally Posted by SD_GR View Post
    The Shell is usually very well priced.
    Where?
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    mrd
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    Higher number of oil viscosity higher temperature is needed to get the engine lubricated. In coastal tx I'd say you'r okay with 10-40, but in lower temp areas 5-up would be a better choice.

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    He simply abides. SD_GR's Avatar
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    Quote Originally Posted by mmiller2002 View Post
    Where?
    If you can grin and bear it, Walmart. Look for 4QT jugs of Shell Rotella T6. Buy an additional quart to make the 5 you'll need, or better yet just buy two 4QT jugs and keep the left over oil for topping up and for the next oil change. They also stock M1 5W-40 (look for "diesel truck" M1 in that viscosity) but it is more expensive and not worth the extra $ over the Shell in my view.
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    Man is a brute.... If you're cruel to him, he respects and fears you. If you're kind to him, he plucks your eyes out. Alexis Zorbas
    I lied. I cheated. I bribed men to cover the crimes of other men. I am an accessory to murder. But the most damning thing of all... I think I can live with it. And if I had to do it all over again - I would. Benjamin Sisko
    DISCLAIMER: Opinions expressed are the author's alone and are inherently worthless.

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