Quote:
Originally Posted by DishoomX2
My thoughts -- a rip off and waste of money @ only 30k miles.
I believe BMW long life coolant is good for up to 100k miles. If you're using top-tier premium gas, you probably don't need a "fuel decarb service". Use some ~$20 LiquiMoly fuel system cleaner if you feel the need.
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on the DI engines that dont have port injection, any fuel based cleaner isnt going to do much to clean the intake tract, the cleaner never touches the backs of the intake valves.
the B58TU2 in the LCI is a different animal, it has port injection as well as DI so a fuel treatment will clean the intake valves.
i dont think the V8 in the pre lci or the lci have port injection
but yeah, both of the services suggested are not needed and just pure profit. the fuel system decarb is probably them dumping an 8 dollar bottle of techron (thats what bmw fuel system cleaner is) and marking it up.