Synthetic oil helps FE? (oh no not this topic)

[popimp]

I switched to Amsoil 0W-20 when I had 1500 miles. Hopefully I didn't change too soon. I'm wondering if I should go the whole one year with out a change or change it at 6K. My owners manual says change at least every 6k, Amsoil says change once a year. Who to trust?

[zpiloto]

Originally Posted by popimp

I switched to Amsoil 0W-20 when I had 1500 miles. Hopefully I didn't change too soon. I'm wondering if I should go the whole one year with out a change or change it at 6K. My owners manual says change at least every 6k, Amsoil says change once a year. Who to trust?

From Mobil 1 folks
and the Amsoil folks

your fine.

[n0rt0npr0]

A lot of new cars do. But there is more to it. They ship out of the factory with 0w30 AND they probably have an all aluminum engine.

The aluminum blocks have to temper themselves at break-in with normal operating temps along with ring seating break-in

Originally Posted by zpiloto

Don't a lot of new cars come out of the factory with synthetic?

[n0rt0npr0]

Originally Posted by zpiloto

From Mobil 1 folks
and the Amsoil folks

your fine.

I think they "say" that because they know the end user will not go out of their way to prove that doing so caused huge oil consumption and loss of compression in their engine.

But those synthetic 0 weight oils are what they use as break-in lube......