Stu, try turning the concentration knob to the right (clockwise), on mine this increases the concentration.
May be the other way around for you though, just a thought.
Interesting, so my US spec Z that I currently run on 98 octane is actually mapped for the US 91 RON rating? And its 91 in California and 93 octane elsewhere.
My papers from Nissan say 214kW (287HP/371NM. I thought the EU version was 276HP?
Update: took the motors out yesterday and 3 of the coal sticks were stuck on one and 4 on the other. Got them all cleaned up and reassembled and now both fans work! great write-up and easy DIY job. Cheers!
I think the highest lumen output is at 4300K and decreases as you go up in color temp.
All you're effectively doing by increasing bulb color temp is decrease lumen output and those blue colors will strain your eyes faster.