Quote:
Originally Posted by Aleta
I have also heard that it's more important to change the oil more frequently when the car is older. When I bought my car new, I heard that it could have run 7,500 miles without an oil change with no problem. Honda Civic.
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As an engine ages, the tolerances are not as tight as when it left the factory. You start seeing more debris and deposit in the oil. It's just part of aging.
What most people don't realize is how much maintenance you actually have to do to keep an engine in good shape. It's more than just changing the oil, but changing the oil often is a good start.
You don't need to change the oil more often as the car ages. You need to fix whatever you're masking with the frequent oil change. For example, if the car is eating oil, fix the seals. If the car is gunking up the oil, clean out the lubrication system.
By changing the oil often you're just hiding the root cause of the problem. That is, unless all you care about is saving money. Then changing the oil once a month would be a good band-aid until the car finally collapses.