Help! After 52 years of changing the oilfilter regularly once a year on my C Rapide this year I am unable to undo the cap. For all those years except last year I used Red Hermatite. Unable to get Hermatite last year I used NON- SETTING Hylomar instead. I am very frightened of using excess force because of the fineness of the thread in the alloy filter housing. Advice and suggestions please.
Hugo
Hugo