Bernie Ecclestone has admitted he's no fan of Formula 1's 'kinetic energy recovery systems' - kers.Investigations are ongoing but F1's chief executive has blamed the recent garage fire suffered by Williams after the team's Barcelona race win on the energy recovery technology.According to cityam.com, Ecclestone is quoted by F1 business journalist Christian Sylt as saying: "I think the fire was a lot to do with that kinetic energy thing which sparked. It should never have been introduced. It's an expensive secret because nobody knows anything about it. The public don't know and don't care."'DON'T KNOW, DON'T CARE'Ecclestone's comments come amid speculation of a potential split with the governing FIA over the next Concorde Agreement. His friend Flavio Briatore admitted in Monaco that he was working on a set of alternative F1 regulations.Ecclestone is also reportedly opposed to the V6 engine regulation change for 2014, with the new rules requiring cars to be powered by kers only while in the pits lane.Yet the commercial head of F1 insists there are bigger polluters in the sport. "If the teams reduced the size of their motor homes or team units they would need fewer trucks to take them there. Mercedes has, I think, 22 trucks; so if they reduced two of those you wouldn't need to use electric motors in the pits lane. The trucks are bigger polluters than the cars."Finally, Ecclestone charged: "I'm happy that the teams want to preserve all of that for their sponsors and brand image but they shouldn't talk rubbish."