Pretty much sums it up. Anyways there's better directions for research now like HCCI that should bring petrol engines efficiencies up: https://en.wikipedia.org/

Pretty much sums it up. Anyways there's better directions for research now like HCCI that should bring petrol engines efficiencies up: https://en.wikipedia.org/wiki/Homogeneous_charge_compression_ignition https://en.wikipedia.org/wiki/Homogeneous_charge_compression...