I see a lot of people use 10-40. The pinned PDI post on this site says to use 10-30. So I am confused. We just got scooters again after 2 years of not having any (3 years for hubby, 2 years for me). We used to use special oil for scooters that we got from our local scooter shop & were told to never use synthetic oil in scooters. Has that changed? Any help you folks could give us would be awesome. Thanks in advance!
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