Scarlet Fever wrote:Agreed, the 1.8 K series engine doesn't have a knock sensor so can't make use of the additional power the fuel can give.
Aaaaaaaaaaaaaaaargh!
Yet
again the myth surrounding knock sensors and high octane fuels is repeated!
Whether a knock sensor is fitted is
irrelevant and is a myth that gets posted around on a regular basis. A knock sensor senses knock (detonation) and signals the ECU to
retard the ignition during periods of detonation (such as when running on too
low an Octane fuel). When the detonation stops the ECU will advance the ignition back to factory setting. The system will not advance past its mapped setting. Thus if you are
mapped for 95RON you
cannot take advantage of higher octane fuels whether you have a knock sensor or not.
For further information, see:
http://mgfregister.org/forum/viewtopic. ... b90#p15498