Recent content by shocar

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    Yet another 5W20 oil usability question - Mazda Rotary Engine

    The Mazda RX-8 is sold worldwide. It comes with a "high power" or "low power" engine option. The high power engine has more intake air flow (more ports) and is rev-limited higher than the low power engine. The low power engine is the same displacement and compression ratio as the high power...
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    Seeking advice on how to handle partial oil changes

    Thanks for the suggestions everyone. I had thought about the dilution ratios over successive oil changes as well. This seems like kind of an interesting problem. I don't mind changing the oil more frequently. Mazda has once again reiterated their stand against using synthetic oil in the rotary...
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    Seeking advice on how to handle partial oil changes

    "Is there a way to send pressureized new oil backwards through the oil filter fitting thereby exchangeing the oil in the cooler and bearings?" Well the Valvoline Instant Oil Change shop nearby has a Bilstein oil flush unit that could be used for complete changes. But I don't want to go to the...
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    Seeking advice on how to handle partial oil changes

    Hello, I have been lurking here for a while and have come up with a question. To show how astute I have been in reading advice given on this web site, I will pose my answers to the question also. I have a new Mazda RX-8 which I really like and want to keep running forever. I am also just as...
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