08-01-2015, 01:20 AM
(08-01-2015, 12:32 AM)Motogeezer1949_imp Wrote: Lots of knock off stuff out there.
along those lines.. I took a lesson from Harley Davidson, that 'an oil filter is an oil filter' is not so true...
Somewhere in the mid-2000s the big air cooled twins went through some major internal changes.
These changes required the specification of an oil filter with a finer filtration barrier.
On the outside, the new filter looks just like the older spec ones. Use an older spec filter on your newer HD and you're probably slowly wearing out the engine faster than if the correct filter that blocks smaller particles were used.
Look the same AND they are both from HD for the 'same bike', but the filters are very different..