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So... after reading this post from biz4two about octane, what octane are you guys using? I've run nothing but 87 in mine since day one. I have noisy injectors but figured it was just a characteristic of the DI engine.
I've been using mid-grade (89 Octane) in my '17 3.5 EB since day one. Hot, cold, towing, not towing. Seems to work just fine. My one unscientific test took place when I had to tow a 3700 pound car on a two axle transporter. It was 250 miles each way in 80 degree weather mostly on Interstate. I ran mid-grade going one way and premium going the other way. I saw no difference in fuel mileage or performance. Like I said - unscientific. Maybe if I had been up near the towing limit and in hotter weather there would have been a difference. Oh, and pulling that trailer I was getting 11 mpg.
