Hi Norm and all
So just mix engine oil with unleaded in the right quantity eg 200ml to 5 L for 25/1 ? sounds good to me and save heaps of money ! When you check the oil requirements for 4 stroke outboards they say only use this or that but it was refreshing to see in my manual for the 90hp honda the oil requirement is 10W30 engine oil and not some specific marine grade bla bla. All about marketing and $, It should be remembered that the business of business is to make money.
Cheers
wce
