Waking up with Sam Harris . Great stuff , super relevant , on point , stone cold fact driven delivery . For those unfamiliar with sam , he ' s a proponent of the so called New Atheism , Author of the end of faith . The podcast tackles issues like religious extremism , islamification , neuroscience , etc . And always a cool guest ! <| sep |> No such thing . All brands of fuel are stored in the same tank until it is loaded on a truck bound for a gas station . When a truck is filled a small amount 0 . 01 % iirc of brand specific additive is included . The additives are basically a replacement for the lead that used to be in fuel and the only thing that makes ' Shell ' different from ' BP '.<| sep |> The best way to save money is not to buy anything .