I searched - these topics are both covered individually in extensive detail, but not the effect of gearing on engine longevity. Let's say I take a stock S (44/15 = 2.93) and go down 1, up 3 for E gearing (47/14 = 3.36). And let's say I drive 60-65 mph regularly (assume it's a long drive to the dirt for me and I don't want to swap when I get there). Sure, the extra revs are annoying. Two questions: 1) Will there be ANY effect on engine longevity from the extra revs? 2) If so, would that effect exceed the difference in the ratios? In other words, it's about a 15% difference in gear ratio. Would you expect the difference in engine life to be greater than 15% because of the extra revs?