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      11-20-2013, 08:45 AM   #17
Constant.S
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Drives: BMW Z4 E89(N54)
Join Date: Nov 2010
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Quote:
Originally Posted by raven333 View Post
For those out of warranty I would seriously consider an injector and fuel system clean first, and not the cheap additives off the shelf, before I would run to the cost of replacing the very very expensive injectors..........in fact I would recommend doing this every 20-25k as a matter of maintenance!!!!!
What process do you recommend for injector cleaning if not the additives?
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