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  #1  
Old 07-17-2019, 03:47 PM
illinoissparky illinoissparky is offline
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Oil change interval changed?

Did an oil change on my 09 E70 3.0 N52 today. Mann filter and Castrol 0W-40.
When I reset the Oil Life monitor, it went to 18,000 miles. Used to go to 15k.
Just watched some YT vids, and their cars reset at several diff values, from 12k km to 15k miles. ??
Had it in last fall for some recalls (air bags and fuel pump).
1. Do you think there was a firmware update applied that changed it to 18k?
2. Does anybody actually go 18k miles?

Thanks in advance.
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  #2  
Old 07-17-2019, 05:55 PM
BabyUnicornTaco BabyUnicornTaco is online now
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Quote:
Originally Posted by illinoissparky View Post
Did an oil change on my 09 E70 3.0 N52 today. Mann filter and Castrol 0W-40.
When I reset the Oil Life monitor, it went to 18,000 miles. Used to go to 15k.
Just watched some YT vids, and their cars reset at several diff values, from 12k km to 15k miles. ??
Had it in last fall for some recalls (air bags and fuel pump).
1. Do you think there was a firmware update applied that changed it to 18k?
2. Does anybody actually go 18k miles?

Thanks in advance.
Change it at least every 5,000 miles and ignore what the X5 tells you. I believe the oil change interval is based on the oil condition. BMW's old interval was 15,000 miles or so. It has changed.
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  #3  
Old 07-17-2019, 08:13 PM
illinoissparky illinoissparky is offline
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Yes. It is based on the condition of the oil. Not a linear countdown.
Early on in the life of the oil that the dealer used in November, it took almost 2,000 miles for it to reduce the life by 1,000.
But recently, it has picked up, and was down to 9k miles left. 18k -9k means that it thought the oil had 9k miles of degradation, but it actually only had 7k miles of driving.
That trend, plus needing a quart added 1k miles ago (first time makeup oil has been needed), convinced me to change it now.
Tempted to try going by the CBS to determine next change, but we love this SUV so much, I don't want to take a chance on damaging the engine.
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Old 07-17-2019, 10:50 PM
ard ard is offline
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Quote:
Originally Posted by illinoissparky View Post
Yes. It is based on the condition of the oil. .
Nah.

While BMW does claim there is an oil condition sensor...I have never seen a shred of evidence that it really does, and it is really used.

But I just change oil at 7500 and be done with it
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Alignment here: The Definitive Alignment Thread

OE is Original Equipment aka 'BMW Original Parts' aka 'What you buy at the BMW dealer with a BMW label'

OEM is Original Equipment Manufacturer... EITHER the company that made the OE part or.... A part this is identical to the OE part, but is sold by the OEM under their own label


OEM is not what BMW sells


http://www.bimmerzone.com/category/T...ricks_OEM.html

https://www.turnermotorsport.com/t-OEvsOEM
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  #5  
Old 07-18-2019, 06:26 AM
Gary214 Gary214 is offline
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Oil is cheap

Engine repairs are expensive

Why be penny wise and pound foolish ?

I change every 5k miles
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  #6  
Old 07-18-2019, 07:01 AM
twh twh is online now
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I don't drive that much. I just change the oil once a year.
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  #7  
Old 07-18-2019, 08:30 AM
illinoissparky illinoissparky is offline
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I agree Gary and twh.

Last edited by illinoissparky; 07-18-2019 at 08:39 AM.
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Old 07-18-2019, 08:35 AM
illinoissparky illinoissparky is offline
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As a last resort, I looked at the Service/Warranty manual. Even IT is confused!
Second paragraph says, [B]in bold print[B], to change oil at LEAST once a year. Then a page later it says to go by the CBS. ?
I will be doing 6k or yearly, whichever comes first.
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  #9  
Old 07-18-2019, 08:38 AM
illinoissparky illinoissparky is offline
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And to make things stranger, I started it this morning, after zero driving after oil change.
Checked oil life to be sure that I really saw 18,000.
Dropped to 17,000 overnight. What???
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  #10  
Old 07-23-2019, 01:36 PM
rustbucket1 rustbucket1 is offline
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Oil change interval is based on driving style, not a sensor. If you do a lot of city driving, it goes down. Lots of steady highway miles, it goes up.


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