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    Kendall GT-1 0W20 12' Mazda3 Skyactiv engine

    <div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: badtlc</div><div class="ubbcode-body">Dilution can be reduced in these engines. My uoa showed no signs of it with the same engine. </div></div> I switched to premium fuel (91 octane) in my last oil change interval on...
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    High Fuel% 2013 Mazda CX-5 2.0 Skyactiv 40579mi

    <div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: webfors</div><div class="ubbcode-body">Mazda needs to solve their fuel dilution in these engines. Great concept with a 13:1 compression ratio on regular for increased mileage. But this is the result... and I suspect the...
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    High Fuel% 2013 Mazda CX-5 2.0 Skyactiv 40579mi

    <div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: webfors</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: vincegt</div><div class="ubbcode-body">Update to OP: I switched to premium for the entire oil interval...
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    High Fuel% 2013 Mazda CX-5 2.0 Skyactiv 40579mi

    Update to OP: I switched to premium for the entire oil interval, and my dilution is down below measurable levels. Blackstone didn't have an explanation as to why that might be, but admitted it looks like whatever was causing it has gone away. Not likely to occur with a mechanical issue. Looking...
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    High Fuel% 2013 Mazda CX-5 2.0 Skyactiv 40579mi

    Thanks for the feedback @k24a4! I've had both changes done right after my commute home; about 20-30 minutes largely highway, with a few city miles at the end. For this most recent change, the shop was empty, so I rolled right in w/o shutting off and the guys were draining within 5 minutes.
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    High Fuel% 2013 Mazda CX-5 2.0 Skyactiv 40579mi

    I'm seeing high fuel percentage in my UOA from Blackstone. This car resides garaged in San Diego and is primarily a highway commuter or long roadtrip car; not exactly severe usage. I'm concerned about potential buildup on the valves since this engine is DI. I know Blackstone's flashpoint...
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