Drcook My car is manual and I notice if dont warm it up the shift qulity is not so good. Cold morning it just takes a little longer to warm up. If you put your liters per 100 on instant when you first start your car you will notice it will be around 5.1 l to 100 and by the time im ready to go its around 3.0l to 100 instant... Hope this makes sence.