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[cignet]

3.2 MV6 2003 auto 70k miles. In spring this year had custard in header tank,changed st steel oil cooler for a new st steel one.For a couple of months burped up a bit more emulsion then ran clear.Decided to give her a treat in time for winter so,flushed [stat left in],filled with tap water and rad flush,ran for few miles ,flushed,filled with pink concen and denatured water.Ran for 150 miles and header tank had a 5mil topping of sump oil.Changed oil no coolant present,header contents in clear bottle showed oil on top confirming prior observation.Have run for a couple of miles and seems to be continuing.Possible serious failure of new cooler??? Limited head gasket failure from oil lie to coolant gallery??? Usual practice advises bypass of cooler but this seems difficult with the rigid pipes used.
Any advice will be valued as 2G for repair of head gasket is not poss.  

[05omegav6]

Takes about twenty-five flushes using dishwasher tabs to get the bulk of it out... Keep at it

[zirk]

How much oil we talking about, it takes ages of flushing after an OC change for the coolant to get crystal clear, if ever.

[Steve B]

Takes about twenty-five flushes using dishwasher tabs to get the bulk of it out... Keep at it

Seen you say that loads of times on here Al.  So it must take ages...do you ever get rid of all the oil then 

[JamesV6CDX]

Takes about twenty-five flushes using dishwasher tabs to get the bulk of it out... Keep at it

Seen you say that loads of times on here Al.  So it must take ages...do you ever get rid of all the oil then 

It can take s LOT of flushing. For the sake of a few quid I often bin the radiator after a cooler failure...

[05omegav6]

Takes about twenty-five flushes using dishwasher tabs to get the bulk of it out... Keep at it

Seen you say that loads of times on here Al.  So it must take ages...do you ever get rid of all the oil then 

Ask Aaronjb it was his car we flushed... And flushed... And flushed...

[cignet]

Thanks folks am flushed with good intentions!!!!!! Still a little concerned at emergence of oil rather than emulsion

[Gaffers]

could have been a blob of oil held in by emmulsion and all of a sudden has been freed.

Fluish fush flush and when you think you are done, flush again