At some of our local truckstops here in Louisiana, there are HUGE "Bio-Willie" banners flying. It seems that Willie Nelson has his own brand of bio-diesel out. From what I understand, It burns quite well, mellows out your truck, gives other motorists a great contact high, plus raises profits at all Interstate Waffle Houses. (Sorry, just had to....."On the road again.....)
...I think the pound & a half was just an additive for the compost pile in the back of the Honeysuckle Rose.