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Old 01-12-2011, 10:11 PM   #1
mclovin
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Everyones favourite oil question

I know everyone hates oil related questions but I'm going to start this discussion regardles. I change mine every 10k using GC 0w30. Is that too often? what are your intervals?
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Old 01-12-2011, 10:29 PM   #2
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I don't think that's too often at all. I use Mobil 1. 0w-40. Every 6-8k.
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Old 01-12-2011, 10:58 PM   #3
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I have no brand preference but I change around 5-7k depending on season and usage.
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Old 01-13-2011, 10:33 AM   #4
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10K is fine. I do mine every 10-12K.
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Old 01-13-2011, 11:14 AM   #5
kai-wun
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I'm a fan of Esso XD3 0w30 myself. The folks at BITOG seem to love it. My OCI are approx 20-30k O_O lol!
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Old 01-13-2011, 11:35 AM   #6
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Castrol synthetic 5w50 Probably changed every 4 - 5k, I use regular Quaker State 20w50 in the summer. I used to be all gung-ho about oil, but now as long as it has good (-45c) cold characteristics for the winter that's all I care about.

It's not the oil breaking down that you really need to worry about, but rather the contaminates that build up. I wouldn't go past 6k regardless of how expensive the oil is, but with newer cars that run cleaner, this may not be an issue and it could be fine for a longer interval.
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Old 01-13-2011, 12:03 PM   #7
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True, it's not the breakdown of the oil but the buildup of contaminents. Apparently filtration on the BMW's is quite good. The factory recommended changes on my 2005 3.0L are every 25,000kms. A little too much for me. I change it at each service (Inspection I, Inspection II, Oil Service) plus once between each of these...basically when next service indicates 12,500kms.

So basically it's every 12,500kms with the factory Castrol Synthetic.
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Old 01-13-2011, 03:05 PM   #8
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Old 01-17-2011, 12:53 AM   #9
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the intervals depend alot on how you drive, if u book the car on a daily basis than the intervals should be short, 5-6K. If you bought a bimmer to look at it more than to drive it than every 15K will do. I use Motul Syn. 5w40 in Europe and here in Canada, seems to do a good job. But ze Germans recommend Castrol Syntec.
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Old 01-17-2011, 01:06 AM   #10
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Quote:
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the intervals depend alot on how you drive, if u book the car on a daily basis than the intervals should be short, 5-6K. If you bought a bimmer to look at it more than to drive it than every 15K will do. I use Motul Syn. 5w40 in Europe and here in Canada, seems to do a good job. But ze Germans recommend Castrol Syntec.
You've got your intervals backwards. Sitting, only occasional driving is the worst thing for oil as it builds up moisture from not being run at operating temperature long enough. 8k intervals are a good balance of cost / protection, and what I run on all my cars.
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Old 01-17-2011, 02:14 AM   #11
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I usually do mine at every 10,000km also and I run Amsoil performance oil.
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Old 01-17-2011, 10:03 AM   #12
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I run 10W60, either BMW's Castrol or Lubrimoly.
I change it every 6-7K. My driving is 70/30 (normal/hard). I hardly ever have to add any oil between intervals and if I do, it is only 250ml or so.
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Old 01-17-2011, 11:21 AM   #13
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E46 M3 - Agip or Motul 10w60 synthetic - Every 7-8k since I track it often
VW Golf DD - 10W30 or 40 mineral oil - Every 5k
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Old 01-17-2011, 01:07 PM   #14
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I change street car oil every 5k, don't care if that's too often - oil is cheap, engines aren't. Any good synthetic 5w30 or 0w30. Usually mobil1, castrol or BMW.

For the track car, I'm an Amsoil and Royal Purple believer. Amsoil Dominator 15w50 or RP XPR (not the street stuff) 20w50. I change it depending on how I feel the engine was treated. If it was run hard then maybe after 1-2 outings, otherwise at least once a year.
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Old 01-17-2011, 03:48 PM   #15
1bmw1
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Quote:
Originally Posted by EMPOWERD View Post
E46 M3 - Agip or Motul 10w60 synthetic - Every 7-8k since I track it often
VW Golf DD - 10W30 or 40 mineral oil - Every 5k
Quote:
Originally Posted by bmwm5lover View Post
I run 10W60, either BMW's Castrol or Lubrimoly.
I change it every 6-7K. My driving is 70/30 (normal/hard). I hardly ever have to add any oil between intervals and if I do, it is only 250ml or so.
Can i ask why 10w60? Seems really thick.
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