Eh, not quite. First, that oil was actually a 20 weight, and secondly, he ran other oils, the one before that run, Redline 5w-20, which has the HTHS of a 5w-30, lol. Prior to that, more typical viscosities. Also, the OP was a complete douche, lol.Here is how you hit even better MPG. 70? 80? 100? Idk... But read this thread, then buy some 0W5 racing oil (NEO/RedLine/Driven). If it worked in VW 1.9L TDI for up to 370K miles, then your Accord Hybrid may actually be alright, considering your hypermiling driving style. Keep it at 3k-5k miles per OCI.