This is my first post on this forum.
I recently bought a 1983 B7100 with a B-219 FEL, it needs a little TLC.
I have the manual for the B-219 FEL, it says to use 10W-30W in it or
10W-40W in warmer climates.
My question is what do any of you use today, the information in the manual is 30 years...