View Single Post
Old 04-20-2013, 07:13 PM   #15 (permalink)
Master EcoModder
Join Date: Jul 2008
Location: Silly-Con Valley
Posts: 1,435
Thanks: 182
Thanked 231 Times in 179 Posts
The current-generation MINI Cooper S models have a well-known problem with carbon deposits in the intake ports and on the intake valves. Walnut shell blasting is used to remove the deposits when they get bad enough.

Fuel dilution, however, has not been a problem that I have heard of.

Fitting an oil catch can and re-routing the PCV system to it has been used as a way to avoid the problem. I don't know if it is a complete solution, though.

  Reply With Quote
The Following User Says Thank You to some_other_dave For This Useful Post:
lamb.chop (04-22-2013)