I recently posted a thread asking how to properly break in a new g37 sport 6mt. I followed the guidelines of
http://www.mototuneusa.com/break_in_secrets.htm
and the car now has 1100 miles on it. It seems to be running excellent and I am pretty sure I did everything right. My questions now are:
-How can I tell if the rings sealed properly?
-At what mileage should I change the oil and switch to full synthetic?

 

Anyone know? or know who I could ask?

 

i Switched mine to full synthetic at 1000 miles on it. Never looked back now having almost 60k on the car.

 

What brand of synthetic do you use? PP, Amsoil, Royal Purple, M1, etc?

Any oil consumption issues or other issues?

 

been using castrol since day one 0 oil burning issues so far, and people that actually know me, know how hard i drive.

 

Dont worry about the brand too much... stay with a name brand and you will be ok... i use M1... and it is great...

 

I'm thinking of going with M1 5w-30 EP or GC 0w-30 and go with the OCI of 7500 miles or 6 months..