Quote:
Originally Posted by Montaver
No harm in changing the oil that frequently, but depends how you drive it. 3,500 casual street miles, you don't need to change the oil. 3,500 track miles where you are putting a lot of heat into it, different story. I change my oil every 3 or so track events, so around that interval. For the street, once a year and under 7-8k miles is totally fine. These cars run very cool to begin with.
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Disagree. I don’t track, I don’t race, I don’t abuse our M cars but I further believe that even the best oils are breaking down at your 7K mile or 1 year comment.
For that reason our cars are oil changed at 5K miles. It is the single most important maintenance an owner can do for a car.
IMO