It's not quite enough to grease the city's coffers, but East Ridge's plan to use bio-diesel to fuel its fleet offers taxpayers some savings.  City Manager William Whitson says "we've saved our first $1,000 and you know it all adds up after that."
The savings comes from 850-gallons of cooking oil blended into fuel for fire engines, garbage trucks, and other big vehicles.
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(The success of the biodiesel fuel industry relies heavily on biodiesel testing <http://www.youtube.com/watch?v=s32Ke2VzrqU>, not only at the production level but at the consumer level, where degraded fuel may cause engine failures.  Of major concern to diesel and biodiesel users is the very real possibility that water has contaminated their fuel. (See http://www.youtube.com/watch?v=0YcczdvPyAk).  The potential catastrophic impact of this problem is discussed at length  in this video at: http://www.youtube.com/watch?v=-lh4qhXc_5s&feature=youtube_gdata.
Fleet Fuel's  family of inexpensive biodiesel test kits  is just a click away on the internet at:
<http://fleetbiodiesel.com/biodiesel_testing_and_supplies.html>)