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    Question for turbo owners: what octane do you use?

    I'm not sure whether the industry has completely solved the carbon buildup on intake valves with direct injection, so for me, I use Shell 91 (highest in CO) because that one is Top Tier (lower octanes don't appear to be) and recommended by Audi. Another thing to consider is as engines age, there...
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    Car and Driver 2019 CX5 article.

    I always thought the Tacoma forum was the biggest collection of know-it-all clowns...apparently that honor goes to an unassuming Japanese SUV forum
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    Coding the Mazda CX-5

    You have an M2?! Loved my M235xi...
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    Coding the Mazda CX-5

    Mom is probably getting the 2019 CX5. I'm wondering if there are any OBD devices that allow tweaks to different functions? For example, on my SQ5 I changed how the gear indicator was displayed, seat heating, signal flashes, permanent off for the Stop/Start, cool stuff like that.
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