| I see you haven't received any feedback! I too have the 2008 Silverado and it only says B5 in my book. There is some mention of Fleet vehicles approved at B20. I don't understand as it seems we are going backwards. If I wanted to run biodiesel, I should have bought an "older" truck! Our government at work! I would like to run at least a 50% blend in my new truck, but I would like to have someone else with the "arrows in the back".
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2008 Chevy Duramax, CC, Stock |