Originally Posted By: ZeeOSix
If going through the trouble to try and "wash out" an oil filter, which is a bit sketchy anyway, just put a new filter on.
People who use an oil filter for multiple OCIs are typically using a long duration oil filter and relatively short OCIs. Example, 2 OCIs on a Fram Ultra or WIX XP or similar. IMO, not a good idea to disturb the filter, just leave it on the engine if using it for 2x OCIs.
Indeed!