Originally Posted By: buzz
Thanks. Also, the 0W-20 synthetic oil makes good sense to me for very cold weather conditions. I think middle ground has been met.


My recollection is that the extreme cold weather lubricant of choice for the A5 and other recoil operated shotguns was graphite. Very Sparingly. I have several older A5 manuals that also recommend the 30wt oil for warm weather lube. In the extreme cold, I personally ran mine dry.