I use donaldson for my ser 60 detroit
If donaldson is not available I'll use detroit filters from my freightliner dealer.
A few year's ago while at fleet pride buying a fuel filer for my davco, the guy behind the counter asked if I cared what name was on my bill? Said if I didn't care he could sell me the filter for $3.92 each.
I bought 2 case's. Another truck part's did the same for me without me even enquiring about it, though he asked first.
I never knew this would be an option.
I should order on line but I dont. Get them local and support local business.
I always use donaldson. I sample every change and consistently if I cant get donaldson and use another brand soot goes up in my next sample. The donaldson, I'm told, filter out finer particles. Works for me.