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Old 05-26-2013, 02:55 PM
wayne mc intosh wayne mc intosh is offline
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Location: barrack heights nsw australia
 
Join Date: May 2013
Posts: 16
Mein Auto: 04 x5 3.0d sport
It appears BMW ceased using a flush some years ago according to service manual (disk)from total car diagnostics(E-bay).Have asked local mechanics who feel it would not harm anything.Would consider the nulon product for myself.Diesel oils are supposed to be hi in detergent so on that thought a flush may not be needed.I would drop the oil after the X5 was really warmed up-a run of 25k or so should do it.With changes @ 15k(so i am told) i have decided to do my at 10k & use a full synthetic/nulon or penrite depending on $.My service book indicates up to 20k between changes-i will go by KLM not the service indicator.May be overserviceing but...

Provided you are happy with your decision after research to go ahead with the flush your proposed proceedure seems fine.The oil company tech sections will talk to you re their products/suitability-AUS castrol/penrite & others really helpful.
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