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      12-13-2023, 01:35 PM   #13
tlow98
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Drives: 2009 E91, 2014 F15 x35i
Join Date: Aug 2011
Location: Bay Area

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Quote:
Originally Posted by sukhk527 View Post
100% need to flush coolant every 2 years or 20k miles. No question. Same goes for brake fluid.

ZF recommends gearbox service as early as 40-50k miles which is what I follow. I’m at 72k and have already done the trans service twice and all driveline fluids are due again at 80k.

Plugs every 30k on a stock tune car.
This seems a little overly cautious, but if it works for you go for it.

Plugs on the n55 are called for only every 60k. Is you car the v8?
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