I normally use Mobil 1 oil with bestline oil additive this 216 has no oil filter so I am using Valvoline non detergent. 30w. Its pretty hard for me to do but i get it. detergent oil will loosen up the sludge and plug stuff up. Just was wondering if any of you guys ever use bestline oil additive in these old engines or does it have enough cleaning stuff in to cause a problem.
Thanks