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    Engine Masters (MotorTrend) Tests Oil Viscosity (Thickies Rejoice!)

    Dino test is the ultimate proof of better lubrication IMO. Why is an interpretation. Maybe there should be a timing chain wear sensor on modern engines. As far as rings maybe the engine when new should get a baseline compression test after break in. Then you can monitor the ring health. As far...
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    Recommend me the best for Miata

    In the end a new car now will last longer than you. And you will trade it in before that.
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    Recommend me the best for Miata

    When I first bought my 2019 Miata I wanted to follow the OM closely. Mazda 0w20 was pretty expensive, I put Idemitsu Zepro with moly for the first change. That Idemitsu price went up and switched to TGMO due to the high moly. (dinuclear type moly) Later on with the help of this site found the...
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    Recommend me the best for Miata

    My view is any quality oil at a 6 month OCI performs as well as the next. But at running temperature follow the operator’s manual for viscosity. In your case 0w20. Mexico’s oil viscosity recommendation is 10w30 and around the world there another viscosity as high as 10w50. Where you buy the car...
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    Recommend me the best for Miata

    I have Red Line in my 2019 miata, but it’s MT-90 in the transmission. Got PUP 0w20 in now. If you change it every 6 months like I do cost of the oil is a factor to me.
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    Mazda skyactiv specific oil filters

    My second Miata… The first one a 2008, I used any flavor oil filter. This 2019 Miata Is a Skyactiv. I have stayed with OEM oil filters.
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    Mazda skyactiv specific oil filters

    The crankcase and intake vacuum are two different things. You have the oil change and filter change as variables with the filter being aftermarket.
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    Mazda skyactiv specific oil filters

    In general I agree with you… Specifically the Skyactiv is unique. So…. You think the guy is a troll?
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    Mazda skyactiv specific oil filters

    Interesting discussion on another forum. Cause and effect for one individual. https://forum.miata.net/vb/showthread.php?t=768183
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    Which grades have low NOACK?

    Base oil quality. Less base oil evaporation, higher heat range.
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    How many times have you switched sides on the thick vs. thin debate?

    Because an engine oil temp. is variable, RPM is variable, so the viscosity is variable and the MOFT is variable. Modern engines use modern engine bearings that control the MOFT tighter to use thinner oil. (in the hydrodynamic regime) The bearing shape and RPM has a lot to do with the oil wedge...
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    Best 20K oil

    OK but to check if the oil is used up the detergent/dispersant package, get a TBN done on your oil at your OCI. P.S. Blackstone is not the lab to do a TBN. Some like Polaris just calls it Base.
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    Best 20K oil

    The operator’s manual rules over the oil sales pitch.
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    California smog check “not ready”

    Check for your car’s drive cycle. It resets for smog check.
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    Another "Taxi" Study: Relationship of Engine Bearing Wear and Oil Rheology 872128

    Wow… The conspiracies. Dated April 2014. https://apps.dtic.mil/sti/pdfs/ADA624797.pdf
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    Another "Taxi" Study: Relationship of Engine Bearing Wear and Oil Rheology 872128

    https://apps.dtic.mil/sti/pdfs/ADA624797.pdf
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    Another "Taxi" Study: Relationship of Engine Bearing Wear and Oil Rheology 872128

    https://www.sae.org/publications/technical-papers/content/2010-01-2176/ Military is mainly diesel engines.
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    Another "Taxi" Study: Relationship of Engine Bearing Wear and Oil Rheology 872128

    Why… they would post it here?
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    Engine Heat and the Additive Pack

    In general EP/anti wear additives are heat activated.
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    Another "Taxi" Study: Relationship of Engine Bearing Wear and Oil Rheology 872128

    https://www.fcsdchemicalsandlubricants.com/quickref/oilchartUS.pdf
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