Oil change is 18k or 2 years - I shall be doing the wife's 125ps Focus every 12 months , even though it only does 7-8000 miles.It cost the best part of £20k , so what's an extra £50 in oil and a filter.They need a very specific oil, it a Castrol 5/20 I
My wife & I both have ford 1.0 eco boost cars, a 120bhp fiesta & a 155 mild hybrid Puma.
Both have been great so far but we don't do huge mileage.
I did though buy the correct Castrol oil for the fiestas recent service.
That timing belt is supposed to last 10 years or 150000 miles, whichever comes first
Bit of a job to change though I believe, engine out to do it.
So yes, use the correct oil & tbh I agree, change every 10k/2 years....not 18k & I suspect you'd be extremely unlikely to have problems.
Mind you, I wouldn't buy second hand with an unknown service history...