This trial has been conducted over the last three months, November, December and January 2010 and has been compared with the same three months of last year. Despite the adverse weather conditions that we are experiencing this year, the trial has proven, yet again, with proper monitoring in place, all of the refuse collectors fitted, have seen fuel savings between 4.24% and 14%. Renfrew council is the first Scottish council to purchase Magno-flo units.