Jellybean Posted September 1, 2013 Share Posted September 1, 2013 I did an MPG test Maxol fuel Q: I was using Maxol yesterday and for the last few months , 95 octane plus 5% ethanol supposedly around 97 octane rating, I was getting about 18.5 mpg , 80% Motorway driving! I switched switched back to Texaco (95 Octane) and I am getting 28-29 mpg, same 80% motorway and spirited driving. can anybody explain why or if they get the same on their Supra's? I am running the stock Toyota ECU, BPU Link to comment Share on other sites More sharing options...
Guest Roger NE Posted September 1, 2013 Share Posted September 1, 2013 Never used an additive Octane Booster . . . . But when I use 97 or 98 Octane petrol I get slightly BETTER MPG than using standard 95 Octane (as well as better performance) Link to comment Share on other sites More sharing options...
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