http://www.biofuelsdigest.com/blog2/2009/04/27/new-tests-show-e20-causes-less-wear-in-automotive-fuel-pumps-than-straight-gasoline-no-difference-vs-e10/ The world's most widely-read biofuels daily Wed, 18 Nov 2009 17:30:24 +0000 http://wordpress.org/?v=2.8.4 hourly 1