2 stroke oil

[adal]

Can anyone tell me please why you can not use motorcycle 2 stroke oil in a Petrol stimmer I was given a full bottle of motorbike 2 stroke oil but when I took a look at the manual it says. Do not use any type of pre-mixed petrol/oil from service stations this includes the pre-mixed petrol/oil intended for the use in Mopeds motorcycle. ect.
Also. Do not use 2 stroke outboard oil in stimmers

 

[ILENGINE]

The difference is in the additives to the oil. I don't know about the UK but in the USA outboards are normally water cooled, Some small mopeds and motorcycles are air cooled but some are water cooled.

 

[bertsmobile1]

Outboard oil is generally vegetable oil so it will break down in water & not kill the fish
Or a synthetic highly biodegradable oil.
Outboards do not run at 8000 to 13,000 rpm. strimmers do.

Motorcycle injection oil will not mix with petrol properly which is why back in the day 2 strokes ran very rich mixtures from 15:1 to 30:1
Modern strimmers run very lean mixes from 50:1 to 100:1