Can I add Sea Foam to my oil crankcase on my BMW 2013 316i N13? [SOLVED]

Thanks for the question. Yes, you can absolutely use Sea Foam Motor Treatment in the oil crankcase of your BMW 2013 316i N13.

Here’s a little more info on how to use it:

• Add 1 ounce of Sea Foam per quart of oil in the crankcase. We recommend adding it 100-300 miles before your next oil change. That gives the Sea Foam enough time to circulate and clean, and it allows all the reliquefied oil residues to be drained away with the old oil. To help progressively clean up your oil crankcase, add it before every oil change.

You could also try High Mileage Motor Treatment. It’s made specifically for stubborn residues and deposits in higher-mileage vehicles. It’s a great cleaner!