Originally Posted by mazdamonky
I just picked up a new Mazda 3 with a 2.5 ............... or having them use the Mazda Skyactive specific oil at least until the warranty is up.
Originally Posted by 1JZ_E46
If I was stuck with 0W-20 I'd run a high moly oil. Idemitsu Zepro moly seems popular.
This advice wins here. Idemitsu Zepro Eco Medalist or Mazda's own house brand 0w20 both have a lot of moly in them. .....------Lots of posts here in the past about how some engineers at Honda have been very vocal about keeping a lot of moly in the oil for break-in especially. Other car makers don't discuss it as much, but the principle of moly protecting rough surfaces during break-in is sound. I would change the oil out before 1,000 miles to get the inital burst of metal particles out first, then put in a high-moly 0w20.
Or, what you could do as a 2nd option for convenience, is go ahead and put in the bulk Castrol or whatever (low-moly) oil, then put in half a bottle of LubeGard BioTech or Berryman Engine Oil Extender or Ceratec to bump up the moly content.