Quote:
Originally Posted by alexk
Mark, my Z4 has the 1M engine.
Yesterday I cleaned the carbon deposits from the intake valves. They were in tragic condition with only 60k km on the clock.
What is the mileage of your 1M ?
I am thinking water injection kit for M5 and Z4 now...
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I wont have to worry about it alex its only done 13,000
Thinking about adding an oil catch can