ZFS 10w40 Full synthetic four stroke motorcycle engine oil Ref: ZFS 10w40 Full synthetic four stroke motorcycle engine oil Price: £41.81 (Including VAT at 17.5%) Size 1-litre (£10.25) 5-litre (£35.58) Specifcation Tailored to meet the stringent lubrication requirements of motorcycle engines where a 10w/40 is normally specified. Exceeds JASO MA API SJ Quantity: