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09-17-2013, 07:29 AM | #1 |
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Oil change interval question
So I want to change my oil myself at 7500 miles instead of waiting til 15k miles for the free service.
My question is, will this reset the oil counter to another 15k miles so I can't get the free 'normal' oil change?
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09-17-2013, 07:49 AM | #3 |
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Okay thanks. I was asking because on my previous 550i, it needed oil service in 700 miles, and said to add 1 quart. When I added the quart, it bumped the service up to 2000 miles.
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09-17-2013, 09:15 AM | #5 |
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Blackstone Labs reports for our cars has shown that ~10k miles is probably the right interval with the Castrol 10w60. 7500 is being cautious, but 5000 really seems like overkill with such an expensive synthetic oil.
The fact that BMW has revised their interval from 15k down to 10k going forward pretty much proves that 15k was too long...
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09-17-2013, 09:15 AM | #6 |
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7500 is what's recommended in Mike Miller's Old School BMW Maintenance Schedule, and even owners of tracked cars that change their oil at that interval and send it out for analysis learn that there's plenty of usable life left. 5000 is normal for non-synthetic oil, but good synthetic oil can legitimately go longer. I use 7500 on my car that sees 6-8 track days per year.
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09-17-2013, 09:20 AM | #7 |
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I've been changing mine every 7500 miles. 5k is overkill, like others have said.
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09-17-2013, 09:55 AM | #8 |
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I change my oil from 6.5k-7.5k
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09-17-2013, 12:09 PM | #10 | |
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09-17-2013, 12:17 PM | #11 |
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Not for our cars, but for new BMWs. Maybe those under maintenance can convince their dealers to give them free changes every 10k, though.
http://www.f30post.com/forums/showthread.php?t=868293 |
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09-17-2013, 12:33 PM | #12 | |
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09-18-2013, 07:53 AM | #13 | |
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09-18-2013, 02:12 PM | #14 |
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hmm....so right now I'm at 6000 miles with 3 track days and 3 hard canyon days....should be ok for another track day (2 weekends from now) before an oil change? (im at the half level and did add about 250mL last week). This shit is confusing.
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09-18-2013, 02:39 PM | #15 |
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With that many track days between oil changes I would not go over 5k miles. I was doing 7500. I too am switching to 5k between changes and I havent tracked my car yet. Many many many of spirited drives though
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09-18-2013, 02:44 PM | #16 |
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Now youre just confusing me more! Ha. Ill do the next track day and then do the oil change (should be around 6700 miles). We'll see what the oil analysis says and then go fron there.
Are you guys literally just placing the little sampler in the oil stream coming out of the car? |
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09-18-2013, 04:01 PM | #17 | |
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09-18-2013, 04:51 PM | #18 | |
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09-18-2013, 08:04 PM | #19 | |
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09-18-2013, 08:25 PM | #20 | |
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09-18-2013, 08:31 PM | #21 | ||
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09-19-2013, 06:08 AM | #22 |
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There is a guy on the German M-Forum, who works as an engineer or something in Castrol. He also owns a Z4 with S54 engine. He said that the 10W60 oil starts to loose its characteristics significantly above around 6.200mi (10.000km). I've halved the first oil interval (around 6.500mi) and now I've started changing the oil every 5.000mi (8.000km). Especially if you track the car and also drive it in winter I wouldn't keep the oil longer than 6.500 miles.
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