Re: ECU reset
Thanks again pcbuild2k. Yes interesting posts, I have read similar posts before.
My interest is a bit more technical, in that I know you cannot increase the max power of say 2.0 TS beyond 110KW by changing fuel. BUT I want to know if the 110KW is (was at output spec writing) done with 95RON or higher fuel. 95RON being the obigatory minimum fuel cars must run on the continent i.e. UK (in Australia we still have 91RON, 95, 97, 98 and until recently 100 which Shell has now withdrawn from retail outlets called V Power Racing).
However when I read info on fuel to use in the owners manual it says;
"For cars with petrol engines, only use unleaded petrol with over 95R.O.N. (Specification EN228)"
And I have seen elsewhere fuel requirement is phrased as "minimum 95RON" suggesting it is capable, indeed running at optimum performance on 97 or 98RON.
So I have decided to test this on my owned since new MY05 (under 18000km) unmodified, unthrashed to compare @ the wheels output on 95 vs 98. I don't think anyone has done this before but want to hear if it has and if the ECU must be reset between or is the timing being retarded via the knock sensor to run on 95 (but not achieve max output) so when you run it on say 98 it just advances timing to it's default position ex factory so ECU doesn't need reset.