What procedure does Ford dealerships have to remove carbon build up on the ecoboost engines

[RANGER/HOBB]

I don't claim to be an expert on any of this stuff but it brings up a topic that I've always wondered about.

1. Does the RR benefit any in performance from using high octane fuels?

2. Is it truly important to use tier one gasoline such as Shell, Mobile, Exxon etc? Do these tier one fuels help keep engines running cleaner and possibly help in preventing the carbon buildup mentioned in this thread?

I used nothing but high octane tier one fuels in my 2020 and 2022 Mustang GT's but high octane fuels are way more expensive and I'd like to get away from that on my new RR that I've purchased unless it truly helps much in the performance and clean running due to the detergents in the tier one fuels.

You want peak performance you utilize 91. Use 89 or 87 and peak engine performance will not be realized. Timing is pulled with the latter two.

Higher octane of 93 may bring a little better combustion but above that there’s no appreciable benefit.

Using top tier fuel is good for injectors piston crowns, rings and fuel system free of water but not much else. Short answer is, “no.”

In a GDI engine; fuel is never washed over the intake valves. It’s injected directly into the cylinders by the GDI injectors. The only thing the intake valves get is; fuel, oil and condensation, that is recycled and re-burned in the cylinders as part of the emission control system

The only thing injector cleaner will do, is keep the fuel system and injector cleaner……….that's it. This is why it’s recommended to do a chemical induction service every 15K miles.

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