Hi guys! Need your help once more...

My brother is doing this thesis on biodiesel...If its really and advantage or not, and he needs the inputs of us users here sa tsikot. He is having a hard time running this survey coz most of the motorists still doesnt know this product. Kindly give me naman ur inputs:

Name: (real name)
Occupation:
Vehicle driven:
Biodiesel used since?
Effects of biodiesel:
Do we still need it since our fuel here in the Phils are now less sulfur?

Nga pala, we both read a study on biodiesel at the site of betan calibration and from what we've read, parang negative ang effects nito contrary to what other sites say. http://betancalibration.com/whatsnew.htm
What can you say about this?

Thanks in advance:D