Asso
Member
- Registriert
- 1 Sep. 2022
- Beiträge
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- Fahrzeug
- Focus ST MK4
- Farbe
- Nero
- Baujahr
- 20 Jan. 2022
HI. I have a Focus ST mk4 map Dream Science 330 hp (Ds Ultima +). This map requires 98+ octane. I use Booster Royal Purple which promises +3 octane. The car does not have a smooth delivery and has an irregular idle. Could it be that between the petrol and the booster you don't get 98 octane? I also have the Active Grill Shutters fault (P059F). Could this be responsible for the malfunction? In your opinion, which of the two is responsible for the malfunction? Thank you.
