I use it now and then with no ill effects. But I do not brew my self as I'm in CA and can not collect. But I do buy a full tank now and then. I have a 03 motor 04 F350 6.0 Have a good 18k miles now of bio use.
For home made it all comes down to how good your bio is. Make some LARGE batchs and have it tested. I think it all comes down to just having good FUEL.
Your in the bay. Come up and try some fresh ATM tested bio. Cheaper then pump diesel right now.
http://www.biofueloasis.com
