2007 Mazda6 high rpm at high speeds
So at <100kmph, the rpms will initially go to like 2500, but then decrease to <2000 after a few seconds. But once the car goes over 100kmph the rpms only goes up. eg. at 120, the RPM would be 2800, at 130, 3000+ etc. And it never goes back down if I maintain the same speed.
Even if I let go of the accelerator, the RPM still does not drop to below 2000 until the speed has decreased to <100kmph.
I've driven some newer cars and this is never the case. ie if I let go of the accelerator, the rpms usually goes right down to 1500 since it's no longer accelerating the car.
Is this normal for older cars?