I generally change the oil about once a year in the old iron. 5 quarts (I do not run an oil filter on my bypass 261 motor), 6 quarts with a filter. So about 45-54 per oil change. Easy money compared to having to change out bearings or rebuild a motor so I can live with 9 per quart. Like I said, I am pretty hard on my motors but in the decade since I have been using the Bradpenn, no issues, and their breakin oil is excellent. I was sold on the stuff when I pulled the valve cover off spring time for the annual valve adjusting and saw that stuff had clinged to the rocker arms all winter during storage. So I stuck with it.
Last edited by Dragsix; 03/12/2020 2:37 PM.
