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So true!Enforcer said:The VQ35DE is a 10.3:1 high compression ratio engine. High CR engines perform better and last longer if you run high octane. Yes the engine has a knock sensor and the computer will retard timing to prevent engine damage due to knock. But there is a lot more going on than just knock.
I don't know what is the CR of the Z car. It might be the same engine, but a different computer, and intake/exhaust design. The hp difference could be from a more aggresive fuel/timing curve, which would demand high octane fuel. Some power difference could also be the size and design of the intake runners and exhaust system.twelsh said:Well they're based on the same engine but they're definitely not the exact same as the 350Z has a maximun horsepower of 287 @ 6200 rpm and a maximum torque (lb-ft) of 274 @ 4800 rpm -- I could see why they would only recommend premium in that bad boy!
(Wouldn't it be cool if the Murano did have the same engine! --- Of course then it would be called an FX35...)