16 CFR Part 306; Automotive Fuel Ratings, Certification and Posting; Project No. R811005
It's rather simple. Due to the limited number of hoses available at a gas pump even today it is becoming difficult to get the appropriate gas, particularly if you need to use premium. Thus, it will not be a case of labeling, instead a case of eliminated the availability of appropriate fuels specific to the needs of a particular motorcycle. Additionally, to think this regulation can potentially harm a motorcycle engine due to the seemingly impossible process of selecting the correct fuel even with appropriate labeling is questionable. Have you visited a pump lately?