tend to miss the point on this.

ADDING methyl alcohol doesn't constitute the trans esterification reaction. AND cooking oil is not diesel, biodiesel or 'raw' biodiesel.

The vegetable oil and alcohol are reactants and the biodiesel is a product.

Beyond that??? enroll in your local community college or university's organic chem (first semester) course.

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1987 300D (230,000 mi on a #14 head-watching the temp gauge and keeping the ghost in the machine)
Raleigh NC - Home of deep fried sushi!