[Want.FR-S]

Originally Posted by Dark

I sometimes run my IS250 on regular gas( when the gas station I go in runs out of premium), and it has D4S. When you run regular, power will be downgraded.

Thanks for the reply. So D4S can work with regular but with a power downgrade. Aren't all cars like that?

Originally Posted by Exage

???

Of course it has variable valve timing implemented. Dual AVCS is most likely.

I know WRX/STI comes with AVCS. Can you show me the spec of FR-S/BR-Z that indicates it comes with AVCS? Somehow I got the impression that there is no variable valve timing in this engine.