Buy One Get One FREE Pepsi Max Coupon Available Again! August 10, 2010 by Mitchell Wischmann This post may contain a link to an affiliate. See my disclosure policy for more information. In case you missed it last time, you can now print a BOGO coupon for Pepsi Max (20 oz or 2 liter) on their Facebook page. This coupon has not reset…it’s only available to those who didn’t get the first one.