Had water get in an engine while doing off roading. It didn't hydrolock but it started to idle rough so I cut it off. The flow of the river somewhat forced water into the side air intake and into the motor. I think it had about 2.5-3 quarts worth in a 7qt motor but never started the motor after that. Drained and changed the oil/filter and wondered if there's a additive that helps make sure there's no oil left in the system. Tomorrow I MAY be pulling the spark plugs turning it over a few times to see if there's anything to kick out. If that goes well then planning to do another flush/oil change. Anything I should add to the motor for this process?