Originally Posted by tabetha

I cleaned a set of light blues, dark greens and greys one after the other, could not see ANY difference between the lot, only flow rate.
The myth about not getting a decent result on greys is just that, a myth perpetuated by those who can't map for shit.
On a T3-34, ported head, my greys ran 0.97% CO and 137PPM, with 200,000 MILES on the engine, 100% faultlessly, and still did over 40mpg on a run, not on a std ecu mind, and none of that nasty closed loop.
tabetha