On Fri, 30 Mar 2012 12:39:34 +0100 (BST), smplx wrote: :: Anyone know how often 'one' is :: supposed to dismantle the filter and remove the accumulated carbon? My Peugeot 207 (2010) is under normal driving (more than 40MPH /60klmh)=20 every 180 Mm hmm try 180,000 km.=20 Supposedly if fuel consumption is high it could eb the filter was blocked=20 or contaminated due to low speed driving. Colin -- cdb, colin@btech-online.co.uk on 30/03/2012 =20 Web presence: www.btech-online.co.uk =20 =20 Hosted by: www.justhost.com.au =20 =20 This email is to be considered private if addressed to a named individual= =20 or Personnel Department, and public if addressed to a blog, forum or news= =20 article. =20 =20 =20 --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .