63 plate mini

I know poor maintenance and using  wrong grade of oil can cause problems have you had any out ? I.e. Fixed them ?

Did you clean &  refit ?  Or replace with New .  I've not done any yet 

The car is well maintained and serviced to death it's a driving instructor s car one of the Joey s is doing his lessons with her however it's previous  oil change was done elsewhere i were busy with testing and the main workshop lad was still on part time furlough !  we serviced it recently and the oil we removed looked wrong i.e. too thick we thought it could be a factor !  she is changing the car in February and doesn't want to spend money 😂😂 we have seen this with the Peugeot engine s !!!  the wet timing belt engines go into limp home mode if wrong oil is used as we  have seen it 😢 and our main factor paid for a repair ... It's good to get another point of view lots read this forum little contribute with their views unfortunately