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      02-19-2018, 08:52 PM   #6
yousefnjr
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Drives: ‘06 Z4MR, ‘20 X7, ‘22 M4x
Join Date: Dec 2012
Location: Bay Area, CA

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Quote:
Originally Posted by WhatTheFetch View Post
Yikes.. How many miles were on those bearings?
Just hit 80k miles, mostly city driving.

Usually change oil every ~4-5k, no revving while cold etc. Always used Castrol TWS, except maybe 20k ago I used the blue bottle “M TwinPower” whatever oil. Only 1 track day.

I did have an oil analysis done at 75k — lead was 30, copper was 3. Funny, because all 6 top bearings were down to copper

I was worried that the journal would be toast but there’s no scratches or anything. Lucky I guess!
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