i have 4500km/3500 miles on my armada, i was wondering when should i cange to synthetic oil?

You should be able to change whenever you are ready to. I still get mine changed at the dealership and they have been using Syntec since my second or third oil change.

cool thanks, lov your ride... you have given me many great idea's

Thanks, good luck!

I have used Syntec since the beginning and my dealer gave me $5 coupons off the next oil change. May want to ask about it