I need to do an engine oil and filter change. Can't get the old filter off. Have got access with difficulty via n/s wheel bay with plastic trim off but the filter is absolutely stuck tight. Have already ruined one strap spanner and wrinkled the filter housing but the (jolly little chap) won't shift. Too proud to resort to a garage. Can't see much advantage in getting at it from below because it would still need a strap spanner and I have failed with one of those . Can't resort to hammering screwdriver thro' cos I still might not shift the dear thing and then what ----HELP ! Any tips anyone.