On the ST, spark plugs should be renewed at every yearly service interval.Ron240 wrote: ↑Fri Jun 21, 2024 8:39 amI see from your signature your ST is a 2023 model the same as mine, so will this be its second service in a year?Pawprint66 wrote: ↑Fri Jun 21, 2024 6:11 am Ours is going in on the 8th July for its 25,000 mile service too.
I am wondering if the plugs are changed on the ST at the second service, but have read conflicting reports about this.
See the service schedule to confirm, it is shown on the/your Ford pass App. (I suspect some dealers will try wriggle out if yearly mileage was/is low). Brake fluid renewal is recommended every two years.