Info for those that don't
DMGRS do a kit, oil and filter at very reasonable price. 5ltrs oil is not quite enough, from dry it uses 6 ltrs. A change with new filter it should be around 5.2-5.3ltrs.
https://www.dmgrs.co.uk/collections/servicing-kits/products/kv6-oil-and-filter-kit-lpw100161-5l-10w40-semi-synthetic-oil-1
Don't forget your sump plug washer.
https://www.dmgrs.co.uk/products/sump-plug-sump-washer-plug-washer-kit-all-k-series-l-series-and-kv6-engines-200-400-600-25-45-75-zr-zs-zt-lsf100040-alu1403?_pos=1&_sid=99b9805fe&_ss=r&variant=303240967
