Castrol Power1 4T 10W-50 Full Synthetic Motorcycle Oil, 1 Quart, Pack of 6

I think the key is the "4T". (Four Stroke) The castrol saves me money. I don't drag race or constantly "nail" it or get out of Police persuits, at least not anymore. I think it is better to change your oil more frequently with less expensive oil than use it longer to squeeze the last mile out of BMW Oil.

Did an oil change on my beast (the S1000RR) before taking it on a 360-mile trip. Rode fine, bike was happy with the new oil. I never put anything other than Castrol in my bikes. Castrol being the only choice oil for all German car and bike manufacturers it would be dumb to use anything else in a BMW. I bet this what the dealership sells at double the price.

This Castrol product is the recommended lubricant for my Italian motorcycle. Of course , there are other motorcycles & motorcyclist that use this product too. I have NOT heard any complaints about the oil and buying it online saved money & time for me. I will buy it again when needed.

Great oil

I used this when I rebuilt my KX450F dirt bike motor. The manual calls for this motor oil. I did everything by the book. This oil is great. I will use it in other applications that require 5w40. Handles heat very well. Took the bike out for 3 hours riding very hard in the mountains in 100 degrees and had no issues.