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      06-16-2016, 07:37 AM   #1
MTrezzz
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E9X M3 Oil Service Questions/Maintenance

Okay according to my records I received the 1200 Mile Oil Service with the transmission & diff.

At 10,000 I got another Oil Service
At 16,350 I got another Oil Service
(All done by my dealership in NY)

Now my question is my car has 19,500 miles on it and when should I normally do my oil changes? Every 5k or 7.5K?

The car is a daily driven beast that sees summers and winters & all I want is for my car to last because I want to buy it out after my lease is over. She feels very healthy no noises or anything. I always do the heat cycle when she starts up and push it when the oil temp reaches 210. But recently in 70+ degree weather she has seen 225-235ish temps.

2) Question is that high 225-235ish oil temps??
3) Which oil brand do you use? Redline?
4) When should I do the Diff + Transmission fluids again? 30K???
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      06-16-2016, 08:58 AM   #2
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1) 7.5k is a bit long, by some people. Most people here do it every 5k "just cause", and if it doesn't hurt the wallet for you, then go ahead and do it every 5k, it doesn't hurt.
2) 235 is kinda high, but honestly I'm not sure what the solution would be
3) Some swear by Castrol, others by the new(er) Twin power. I 've been using LiquiMoly for 3 years and it's been fantastic (plus it's the cheapest of the three). Whatever you do, stick with 10w60
4) Diff and plugs are very ~30k. Trans is 'supposed' to be lifetime, but I'm not sure if there are any noticeable differences with changes (correct me if I'm wrong)
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      06-16-2016, 05:50 PM   #3
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Quote:
Originally Posted by MTrezzz View Post

Now my question is my car has 19,500 miles on it and when should I normally do my oil changes? Every 5k or 7.5K?

The car is a daily driven beast that sees summers and winters & all I want is for my car to last because I want to buy it out after my lease is over. She feels very healthy no noises or anything. I always do the heat cycle when she starts up and push it when the oil temp reaches 210. But recently in 70+ degree weather she has seen 225-235ish temps.

2) Question is that high 225-235ish oil temps??
3) Which oil brand do you use? Redline?
4) When should I do the Diff + Transmission fluids again? 30K???

1) 7,500 miles should be fine unless you are spending prolonged periods idling and/or doing a lot of very short trips (where the oil wouldn't come up to temperature). Best way to tell is to get the oil analysis and then look at TBN+TAN results. The oil pan is nearly 9 quarts, the filter is huge, and the OEM 10w60 oil is very robust. It can handle that interval for the vast majority of cars.

2) Nah, not really a problem. The gauge isn't terribly accurate. Mine indicates 260 on the track and every analysis has come back fine.

3) Stick with the BMW-branded (Shell/Pennzoil-made) 10w60, or the previous approved Castrol TWS 10w60 oil. Red Line's 10w60 is very thick for its grade.

4) Every 30k for rear differential & transmission should be fine unless you are racing the car every weekend. If you have a DCT, 30k is probably a waste. Most do 50k and the reports have shown that even 50k is "early".
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      06-16-2016, 08:08 PM   #4
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I used a mix of Mobil 1 0W40/15W/50 and did an oil change at 9,000 miles because I just didn't have time to do it at 7,500 miles.
The Blackstone report was fine and they said I could have gone to 10,000 miles easily. I did add a quart of the mixed oil at around 8,500 miles during a track day weekend.
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      06-16-2016, 09:56 PM   #5
MTrezzz
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Thanks for the information guys much appreciated & yes every weekend I push my car and drive it like a race car lol (6 Speed).
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      06-21-2016, 08:13 AM   #6
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Once a year (12k miles) has worked great for my old s65 with 96k miles. All oem fluids.
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