That was their basic conclusion...if an engine runs fine on 87, then more octane does little to help. The only noticeable gain was from e85.
Agree. The variable is that the Coyote variable independent cam timing can bleed off compression by opening the intake later or closing the exhaust later. Plus direct injection helps to prevent detonation by injecting the fuel as late as possible. So basically the Coyote has control of its functional compression ratio plus there's no fuel to detonate until it's time for the combustion event to occur. 12:1 generally is a little high for 87, but between DI and the cams, the Coyote might run fine on 87 with 12:1 CR.
OK, just looking at cost I don't really get it.We have 89 octane here, a nice compromise, runs great. I am not concerned about the price one way or another because being retired, a tank of gas lasts me a month or so.
C'mon Bikeman315. That's 2 phone calls in a payphone. That's a lot.
What’s a payphone?
And it’s a rotary? The kids will never figure out how to operate it!Ah, the good old days!
Point to your analog wristwatch and say 10 bucks if you can tell me what time it says (put it a hour ahead first incase they cheat). Tell em 10 bucks if you can read this paragraph written in cursive. Tell em 10 bucks if you know the correct change if something costs 13.35 & I give you 20.35 etc., etc.
My favorite is giving a $20 bill and 27 cents to the drive through kid and the deer in the headlights stare back…
I tell my grandkids if they see one that they found a time machine.............Ah, the good old days!
Got replaced with 'rat'.