Over the last couple of weeks, when I start after sitting overnight, it runs real rough for say 10-15 secs, with a nice cloud of smoke out the exhaust. Some days it resembles my old POS Corona, other days there may be a little bit, and some none at all.
Also after overnight it will sometimes take half a crank to start, some normal (2.5 cranks) and sometimes up to 5+ cranks. If it starts normal, there will be little or no smoke, with the other two, there will be some or shitloads.
But once warmed up it re-starts fine with no visable smoke, no smoke either when I accelerate from a stop.
It first started doing the same time as when the car started performing like a dog and getting shit economy(~160kms/25L), I was using Caltex Vortex/Gold Premuim from one particular servo, started filling up at a different servo and now the car runs better than ever and fuel economy is back to normal, but still starts like a dog.