The white oil filter was advertised as a fitment for the m100 and I bought it, looking forward to my first oil change
This was messy and 'impossible' - I'd dropped the slippery original down the back of the engine (as you do first time?
I left the scene of carnage and bought the smaller dark one from Halfords. Both were Crosland; the smaller unit was easy-peasy to fit...

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