Patman
Staff member
I know it's definitely a good idea to change the oil before you are about to put away a car for winter storage (3-4 months) because you don't want the acids in the oil damaging the engine.
But, let's just say the oil is 4 months old and has 4000 miles on it, but it still has a strong TBN of 10. Would it still be necessary to change the oil, and if so why?
But, let's just say the oil is 4 months old and has 4000 miles on it, but it still has a strong TBN of 10. Would it still be necessary to change the oil, and if so why?