Just gotta watch , some fuel adds can make the engine oil look bad in analysis . One reason in the other thread I suggested not to test this initial Maxima 0w-30 run . Get a good baseline UOA then resume fuel dope testing if needed .
Catalytic converters mask visual smoke .
Lucas UCL = low nitration at 2-3 ounces per 10 gallons . It has something in it to help pop the gas off where the two stroke oils do not .