I fully understand that spark plugs nowadays are long life and can last up to 60K, but I am old school and I wonder if changing the spark plugs every 30K miles is a good idea or just a waste of money?
I am thinking that the modern BMW/Mini Engine (especially the JCW) seem to be under a lot of stress, heat etc and this can degrade the performance of the spark plug, am I right?
I am thinking that the modern BMW/Mini Engine (especially the JCW) seem to be under a lot of stress, heat etc and this can degrade the performance of the spark plug, am I right?
