[Hawaiian Driver]

Today I went for a 100 mile drive and never once put the car in 5th or 6th gear. I find this to often be the case. The roads here are so endlessly twisty I can't get anywhere near enough speed for those upper gears.

So my question, is this bad or harmful to the transmission to virtually never use those top two gears? Otherwise I typically drive well above 3000 rpm most of the time,

Thanks to all, and Happy Fathers Day