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- '13 CWP MS3 & '16 Mazda6 GT
thats more what i was referencing in my statement... if you're premixxing tho then im sure its fine

We use synthetic in our Race RX7 because we have no oil metering pump, and run proper premix. I know reviews were mixed about using synthetic in a car with an OMP because it may not burn as easily/may leave deposits. Not sure if that is rectified.