Datsun 240Z, 260Z, 280Z oil filter. New K&N Pro Series oil filter for 1970-78 Datsun 240Z/260Z/280Z. K&N Pro Series oil filters come with strong sidewall canisters for higher burst strengths, PSI relief valves and nitrile rubber anti-drainback valves (where applicable), and rolled threads to help prevent stripping when installing the oil filter.