I need to replace the front pads on my Saab 9-5. As it's now covered 212,000 miles I thought I might treat the pistons to a little lube. I recall a thread a few months ago which mentioned this. I'm very aware that the utmost cleanliness is required, and I'm also wary about using the wrong product. Would I just be better working them them a few times through a good range of motion, or would it be sensible to clean and lube them? I don't want to completely remove and overhaul them, just ensure they've got free movement - I noticed the old pads are a little more worn on one side of the car than the other.
I've never tried this in over 40 years of maintaining my own cars, hence the question. I'm not even sure that it's necessary, but the recent thread just got me thinking.
As an aside, I always use coppaslip on the sliding pins and the surfaces where the pads bear on the caliper.
TIA!
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