Maybe you should lift your foot of the gas pedal when you shift and the tyres wont smoke so much !!!!!
Jokes aside...... for a new motor to use a little
oil is quite normal especially since you are not really aware af how much attention was paid to detail when assembling the engine.Rememeber that a lot of guys replace the bolt on gaskets etc and think that they have rebuilt the entire engine.Sometimes its easier to just pull it out and rebuild the motor.John
Also I would use nothing less than a 20W 50, these are not modern close tolerance engines.