I use one piece oil filters in my 1975 R90/6. I bought 10 HiFlo 161 filters, made in Austria I think, for less than $4 each.
I will try to remember this about filters but for some reason all the years I've been around this stuff I never knew the oil cooler bikes had only on O-ring.
I do believe in oil coolers, I just never had one.
disston screwed with this post 12-31-2012 at 10:11 AM