Never heard of this.
I opine two possibilities.
One, and IMO most likely, is a language and translation error. Happens frequently especially with Chinese products. I’m guessing this is not an American made product so mostly likely the owners manual has been translated to English and the wording is awkward.
Two, possibly the oil fill tube or the oil drain tube is recommended to be replaced. Perhaps the plastic is prone or cracking or gets an excessive amount of heat by where it’s positioned. Some engines have a rubber oil extension to make draining oil easier.
Last edited by ToadU; 06/11/20 09:27 AM.