I am quite impressed with the SkyActive and EcoBoost that are out there, direct injection, turbo/supercharging, and even higher CRs.
I just filled up with 87 octane and it cost $4.199/gal, about average for OC, and there is no ethanol free stations anywhere.
After this tank I'll try a tank of 91 and see if there's a noticeable difference.
Thanks for all the info!
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