castrol magnatate 5w 30 fully synthetic consider it as liquid engineering nothing better in my opinion!!! have used this on my honda jazz, new filter and oil change every six months car runs like a sewing machine smooth and quiet, I dont deal with dealer after they wanted £30 to upgrade from synthetic to fully synthetic you can buy 4 ltrs for less than their upgrade price main dealers bunch of crooks as far as i am concerned, used to work for TJ filters/ Tecalemit Maintenance fitter 22yrs in Plymouth I know exactly what goes into filters pity they dont make them anymore they were the best so now use genuine honda/ or bosch, not branded cheap filters from euro car parts it all worth it in the end if you want to look after the car works for me!!!