Shimano chains - rivet reuse?
compute the cost of oil and filter for 100k miles, 150k miles-whatever
your mill is known for and exceed for good luck
rule used hear is-when the fingerprint ridges are felt thru the oil
rubbed tween fingers
then its lost acceptable lubricity
motor oils mileage/print/dirt/other fluids and abilities to absorb this
crap and keep on lubing-vary wildly
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