My girlfiend just picked up one new (maybe I'll get a 2014, very solid car). I'm a little concerned with the engine being broken in with the synthetic 0w20. Any cause for concern? The thought crossed my mind to just dump the factory fill an throw in a regular 5w20 like Castrol. On the other hand a lot of cars are coming from the factory with synthetics. I'm not sure how Mazda manufactures their engines, maybe they have a process to break them in even before they hit the shipping container.
I haven't been babying the engine either way and I told her she shouldn't. I think the most I've given it was 60-70% throttle.
I know there are various schools of thoughts on this subject but I wanted to see if anyone else has done it.
I haven't been babying the engine either way and I told her she shouldn't. I think the most I've given it was 60-70% throttle.
I know there are various schools of thoughts on this subject but I wanted to see if anyone else has done it.