Thank you for your feedback. Some places they advices to mix 2T oil for protection of engine at low temperature. Anyway forget it. Main issue is I am unable to make homogeneous mixture of castor oil and methanol too. After few minutes castor oil tends to settle down. This lso happen in fuel tank and castor oil reach fuel ends up in carburettor and kills engine. I'm looking for a solution to mix castor oil thoroughly and make homogeneous mixture.
Methanol and castor oil are completely miscible.
It is water content that makes them separate.
And methanol is hygroscopic- it absorbs moisture from the air.
To avoid water content in methanol you have to use LR (lab reagent) grade, not commercial grade.
And keep the can closed.
I’ve switched over to Falcon fuel from aeromodellingtutor.in.
No separation after 2 years of storage during covid.