oil change: 6000 miles or 6 months?

Honest John Back Room » Technical matters
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Thu 30 Dec 2004 10:01
oil change: 6000 miles or 6 months? - tyro
Having decided to follow HJ's advice on changing oil frequently, I'd like to know whether frequency of changes should be determined by mileage or time.

If I do 12,000 miles a year, but 6000 of those in the first 4 months, should I change after the 6000, or after 6 months?
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Thu 30 Dec 2004 10:29
oil change: 6000 miles or 6 months? - Andrew-T
Oil deteriorates by being churned round in a hot engine, not by the simple passage of time (unless we are talking years, not months). So go by miles, not months.
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Thu 30 Dec 2004 10:40
oil change: 6000 miles or 6 months? - Altea Ego
All service intervals that state miles or time always add "whichever comes first"
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Thu 30 Dec 2004 15:24
oil change: 6000 miles or 6 months? - Andrew-T
Agreed, RF, but not many schedules nowadays suggest any changes more often than yearly ...
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Thu 30 Dec 2004 10:41
oil change: 6000 miles or 6 months? - Stuartli
Also if you do a lot of short trips rather than mostly long journeys, change the oil and filter even more regularly.
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