I believe I heard in the video that they lowered the compression in 2017 Raptor so they could increase the boost without knocking.
Yeah, I do feel for you guys that cannot get 93 or higher.
If I have time I'd like to know what is governing that.
I mean other than somebody is making money. LOL
Debunkers,
Scientific: https://www.scientificamerican.com/article/fact-or-fiction-premium-g/
From your government: http://www.fueleconomy.gov/feg/octane.shtml
Why do some manufacturers require or recommend the use of higher octane gasoline?
Higher octane fuels are often required or recommended for engines that use a higher compression ratio and/or use supercharging or turbocharging to force more air into the engine.
Increasing pressure in the cylinder allows an engine to extract more mechanical energy from a given air/fuel mixture but requires higher octane fuel to keep the mixture from pre-detonating.
In these engines, high octane fuel will improve performance and fuel economy.
Will using a higher octane fuel than required improve fuel economy or performance?
It depends. For most vehicles, higher octane fuel may improve performance and gas mileage and reduce carbon dioxide (CO2) emissions by a few percent during severe duty operation,
such as towing a trailer or carrying heavy loads, especially in hot weather. However, under normal driving conditions, you may get little to no benefit.
