Anyone else do this or am I alone lol
Ever since I bought the old bus I've always cut the old filters open and had a gander inside, either to judge oil filter construction or any foreign contaminates that might of found their way in there.
My old filter is a Bosch unit and to my surprise it is very well made, even after 5000mi the pleats were still firm with no sign of collapse and it was quite the job to cut through them!!
The filter material I like to squeeze in the vice to remove all traces of oil which might hide any contaminates that are embedded in the surface
Once squeezed the dry'ish filter material is stretched out on my bench where a good gander can take place
Admittingly I was surprised to see absolutely no contaminates of any size contained within the pleats, which is surprising considering the apparent EP grade viscosity the 10w60 has turned into, it is the consistency of maple syrup which is worrying..
And it is very dark
Which is weird considering the inside of the engine isn't dirty I can only assume the detergents in the Oil aren't up to the job, weirdly Castrol doesn't list the additive package for their oil so I can only assume!!