Thoughts.
@grasscutter
OP mentioned he sets cruise at 55 on the interstates. IMO the interstate is not the correct road choice for the OP. Interstates here are 65 and 70, for the reason of going faster. You have to know you are “picking fight” to go 15-20mph slower than traffic, especially if it’s during congested hours. If you can’t go that speed, and you know it, you should choose alternative routes. Im sure there will be extenuating circumstances, but this is not courteous and does create hazards for everyone else.
Speed between lights. It depends on the distance between lights. If they are close together, then there is a reasonableness to holding back on speed for timing. However, as they spread out, that weakens - people are on the road to get to their next destination.
I hate to say it but something seems a little passive aggressive here, like having a point to prove. OP is right that lower speeds reduce wear and tear, and factually his logic is sound, but there’s also the question of what is “reasonable.” If the average traffic is faster, then blending in (to the extent that one isnt violating other laws) by definition is more reasonable from a civic courtesy and even safety to others, at the detriment of wear and tear and an mpg or 2. This also holds that driving 10 under for wear and tear concerns becomes unreasonable.
I’m not sure about where I live now, but there used to be laws concerning max number of cars that could stack up behind you before you were required to pull over. I pulled over regularly on 2-lanes when pulling a camper.
I get frustrated when I drive between job sites mid-day and folks out and about are going slower than I would and missing green lights because of their phones and blocking both lanes of traffic. Common courtesy on their part would be to pay attention and keep right. At least they aren’t out during rush hour. They’d get creamed. I try to be as polite as I can.
Once I lived in a very large city and my mom came to visit. She was confused by all the traffic and experienced several horns and a single finger solute. It wasn’t a great time for her. I try to remember that the person holding me up could be my own mother, or definitely is someone else’s mom (or dad). But, my mom has also realized the interstate isnt for her and chooses slower back roads whenever possible. She’s not a fast driver, and frankly, neither am I, most of the time, so I get it.