Sludge stain on the cap - flush or not to flush engine

[shiva73]

Gets...I search tru the forum about this topic, and altho it was discussed earlier, there was no conclusion . Just need to find out - i found dry sludge deposition ( minor ) on the internal side of my engine cap . Should i flush or not. I use to flush my e39 everytime i change engine oil at 5k interval . Mine is now E60 530i 2004 recon.TQ in advance

 

[B33mEr]

Your E39 looks gorgeous :love: Anyways ... about the sludge problem it must be the previous owner didn't change oil frequently. A shorter oil-change-interval might do the trick instead of flushing.

Here's a good read: http://www.carbibles.com/engineoil_bible.html

 

[shiva73]

Bro B33mEr .. tq for the comment. The e39 is sold and still at dealer shop in melaka. Ok i will do that then . Maybe i will change the engine oil for 5k interval for couple of time before i stick to regular 10k.. tq for ur advice.

 

[selvahraje46]

time to change your avatar and signature..

 

[shiva73]

Still missing the e39 . Its one of its kinda that carry the full signature for BMW.

 

[Capt.M.Faisal]

Your E39 looks gorgeous :love: Anyways ... about the sludge problem it must be the previous owner didn't change oil frequently. A shorter oil-change-interval might do the trick instead of flushing.

Here's a good read: http://www.carbibles.com/engineoil_bible.html

Agreed, the sludge deposited shows bad engine maintenance this shud have been checked before buying car.

 

[shiva73]

I have checked few other cars in few other shops, but most of them with heavier/thicker sludge . This one is still acceptable to me from its condition as its just minor dry stains. However , my idea is to get the engine cleaner by getting a frequent oil change . Infact , when i bot my e39 , i noticed the same condition . I service the car at 5k without fail and sometimes flushed the engine before oil change . after 2 years i dont see any sludge deposition and inner part ( visible area ) found to be cleaner from before.