So many factors play into both oils , I use both depending on the age of the vehicle on if it’s a motorcycle or car , also air or water cooled will play a factor ! Some of my vehicles are driven every day others are classic or vintage , either way I will pick and choose what is best or recommended ! Following the specifications on each oil brand plays into my decision ! I favor synthetic for my newer cars with the right viscosity for our region ! My older air cooled BMW motorcycles I use conventional oil , this is where we can get into arguments over what is best ! Some motorcycles bathe the engine and transmission together and require a specific oil for that application . the other motorcycles have transmissions separate from the engine , some are air cooled others are water cooled , again chose your oils based on this design .Temperatures will very greatly on a liquid cooled vs air cooled engine ! Your ridding style plays into how frequently you should change your oil I.e. highway miles vs stop and go in heavy traffic .... example : cruising Myrtle Beach in the summer on the strand , some have no idea how hot an air cooled motors get , it’s HOT ! The debate will continue but those in the know will do there best to use the right oils I’m sure ! Happy motoring and be safe everyone !
... View more