Liqui-moly.de
 

Check out liqui-moly products. made by germans for german autos. fully synthetic oils, with true base stock synthetics, better than castrol that is not a "true' synthetic. they make engine flush products, diesel flush products, valve cleaners. I have used their valve cleaners for years . ask your bmw mechanic, he will know of their stuff. chucker

hi,

Doesnt the instructions on the bottle say idle your engine for 10 minutes. do not drive your car during this period?

also wouldnt the mechanic need to remove the valve cover or head to identify sludge?

Hello, acitydweller. Well, to answer your question, it doesn't really say not to drive it around the block. I think driving anything over 1 mile would be bad. But around the block, would not do anything. Now this is just my way of cleaning the engine out. You don't have to do this. Just add and idle for about 10min. That should be fine.
To answer your second question. All I can say is that my engine ran rough when I first bought it. And on some occasions I could hear a light knocking noise from the engine when the engine was very warm after driving back from work. It took 4 oil changes and flushes but now no noise and is smooth and quiet. I also add one container of BG MOA in the engine at every oil change. Again people will argue about this but I don't care what anybody says. All I know, this has helped me put over 200k on my previous Lexus, Infiniti, and my Ford F-350. So to each his own. I have right now 97k on my X, and she is running better then when she had 45k. Hope I could help. Good Luck.

im glad it was sorted out on your car. i am just a little nervous when it comes to engine maintenance. had too many different mechanics say different thigns on the same car, if you know what i mean... I have used seafoam in teh vacuum lines no slow drip for several other japanese cars but never on a bmw.

NOW BEFORE YOU GUYS BLOW MY BRAINS OUT FOR SAYING THIS...hear me out...

from the advice of some local members here from SoCal they said one of the good SAs in town is John Velarde from New Century BMW in Alhambra. Went there to make an appointment and told him about our forum and he was glad to hear about his reviews. He was cool, did a great job but before I left, he whispered to me that DON'T DO OIL CHANGES IN BETWEEN what the Meter on the cluster says. It's a waste of money. He said that these engines are built to last longer without oil changes.

NOW, HOW MANY OF YOU GUYS AGREE?

I don't agree. Clean new oil is always a better lubricant.

I myself gave him that look as well but he assured me that its a waste of money. I do follow the usual 5k oil change on both of my vehicles no matter what the SA said otherwise...

I change the oil following the service indicator on the X5 4.4


on my low mileage M3 I'll change the oil annually because I don't drive it enough.

110k miles and no problems. I think the rest of the car will fall apart before the engine dies.

Did you mean Lubro-Moly products? You can purchase these from companies like Bavarian Autosport, BMP Design, and others. They have been recommended to me by 2 indy BMW shops. I know Lubro-Moly sells a product called MotorClean, which is supposed to dislodge sludge and improve compression. It cost approx $15.00 That is about the only product I would use, if any. It is made in Germany for German cars. I have personally used the Lubro-Moly Ventil Sauber and Jectron for years in my e36 325i, which has over 270k on the clock. No offense, but I would never put kerosene or Pine Sol in my 4.4. I think your best bet is to use good quality oil and change it about every 7,500 miles, avoid short trips that do not allow the oil to reach high enough temp, and use Lubro-Moly sparringly. Lubro-Moly and Red Line also make engine oils that are supposed to be very good. I have not personally used them yet, but from what I have read, BMW in eurpoe recommends the Lubro brand. Just my $0.02.

:iagree: I've always followed the lights based on A) what BMW says B) Dealers (who would actually benefit from you coming in more, and C) my experience of never having a problem with any of my engines following doing it this way.

I think it's hard to except for some people, but oil/engine technology has changed quite a bit in 30 years. Oil changes every 3-5k just aren't necessary anymore.