Thanks for the reply, Christ! I have two points here -
1. With increase in temp I saw a
decrease in FE. Should it not be the other way round?
2. The ECU mistook my ~88 octane fuel to be 93, and gave me waay higher FE. What did it do differently with that assumption that it adjusted for the later tanks? (If I know, I can mimic it, so I get back the FE)