4 liter jug of high quality German Liqui-Moly Racing 4T Synthetic 10W-40 engine oil. This is the synthetic engine oil with API-SL, JASO MA rating (can be used in the wet clutch on the new K1200 series bikes). This is enough for 1 oil change on all Oilheads, K-bikes and Hexhead R1200 series bikes with some left over for topping up. Also enough for 2 oil changes on an Airhead bike with some left for topping up. This is the oil that BMW recommends for use on the newest K1200 series bikes from the 600 mile service until at least 6000 miles. Can be used after that as well.