octane

Hi all. Not my first Mustang, but I just picked up a 2015 Ecoboost with 50K miles that had an intake, borla exhaust and a Cobb tuner already on it. I am new to the tuning a turbo engine world. When I picked up the car I had a 600 mile drive home. It was running great other than some...

I was using octane booster with a few tanks in a row, and now when I go WOT I am seeing positive knockr on my nguage. It is usually negative at anything less than wide open. This all makes sense; but how would I go about resetting what the ecu uses to guess octane, or should I just keep...

Hi all, storing my gt350R for the winter. Having a hard time deciding which gas to put in for storage. I have 2 options: 91 non-ethanol 93 with ethanol What would you recommend? Would 91 non ethanol affect the longetivity of the engine possibly since it’s a lower octane? I know the manual...

So I was reading the manual and see the V8 can run on 87 or 93 octane. Can you easily tell the difference between the two?

First post, howdy everyone! I'm the 2nd owner of a seemingly bone-stock Bullitt with 9k miles. So the owners manual clearly designates 87 octane as a minimum requirement for the '19 Mustang Bullitt However, - The dealer I purchased it from said to use mid-grade for cleaner/better-quality gas...

Thinking that now is as good a time as ever to get a flex fuel E85/93 octane tune. I've been searching around and there seem to be a lot of great tuner companies ... but my question is around devices. What devices work with a Mac? I don't mind running a VM to do software updates to the...

Anyone know if using 94 octane will yield more performance (over 93) since our cars were stock tuned for 93. I would assume yes because there is a 15% drop in performance when using 87 Octane over 93.

I can't emphasis enough of the blown engines that I've seen here in Germany so I thought it best to create a thread here on it. The US obtains its octane rating by this formula: AKI = (R+M)/2) which is sometimes called Pump Octane Number (PON). AKI means Anti-Knock Index R is short for...