Biodiesel is a mix of methyl esters. Under high pressures (over 15,000psi) it polymerizes to form polyesters. They are solid materials with varnish like properties. Any half competent chemistry graduate could tell you this.

It will cause problems in a CDI system.

Some one doesnt need to have destroyed an engine to know this basic information.

It is far more of a problem than running WVO in an unmodified diesel system.

compress ignite is correct in his comment.

If you want to prove it, go ahead and try it. I some how dont think any one who goes down that path & messes up their CDI is going to admit their stupidity.

__________________
Grumpy Old Diesel Owners Club group

I no longer question authority, I annoy authority. More effect, less effort....

1967 230-6 auto parts car. rust bucket.
1980 300D now parts car 800k miles
1984 300D 500k miles
1987 250td 160k miles English import
2001 jeep turbo diesel 130k miles
1998 jeep tdi ~ followed me home. Needs a turbo.
1968 Ford F750 truck. 6-354 diesel conversion.
Other toys ~J.D.,Cat & GM ~ mainly earth moving