should this be done on our cars?

 

I'd say no - assuming your car is operated under normal circumstances and receiving regular oil service with quality synthetics and original/factory filter changes.

 

I wouldn't do that

 

i did it uh-oh

 

I was thinking of having this done too to my 63000 mile 2004 545i.

(ps; Ellicit, I am now using your pic as my desktop background. Hope you don't mind. AWESOME PIC!)

 

the car feels a lot better after the flush.
thanks, i Photoshop my e60 on to that image... came out pretty cool.. wish I had a higher res

 

I don't think it would hurt the car, but probably unneccessary unless you had a sludge problem for some reason. I may do it if I ever hit 120k. At that point I'm sure there is some level of dirt that it would help clean out. But until then, I just don't see the need with the great job that synthetic oil does in the crankcase.


I did to a couple of engine flushes on an old Jeep Grand Cherokee that had about 140k. That thing has about 230k now and the engine is still going strong. I gave it to my father, who since gave it to my niece. Jeep I6 engines run forever.

 

If flushing the engine a bad thing?

 

Excuse my ignorance, but now I'm confused. Are we talking flushing the Oil or the coolant?

 

I did a fuel injector cleaning service done by my dealership and the car felt way more responsive. I also gained some MPG from doing it.

FYI that was done at 65,000 miles. Spark plugs were changed with new ones at 50,000 miles.