An imminent change from a 2-stroke marine outboard engine to a 4-stroke engine on the same craft begs the question of disposal/use of the remaining stock of 2-stroke fuel:
- what is an acceptable route for the consumption/disposal of unleaded premium-grade petrol/gasoline that has had 1% of 2-stroke oil blended into it?
The quantity involved in this case is about 3.5 litres of 2-stroke mixture, being held in a 12 litre steel tank dedicated to outboard use.
Among the options:
- blend it into the petrol/gasoline supply to the 4-stroke engine (though at what maximum oil concentration?)
- ditto to another 4-stroke engine, such as a road vehicle
- blend it into a polypropylene tank containing 1000 litres of 28-second home heating oil (kerosene)
- give it to another 2-stroke engine user and enjoy the experience of so doing
What is CR4's considered view on the subject, please? 
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