Sometimes I drive 10 - 15 under the speed limit on purpose to save fuel. Yes it does make a difference. I stay in the right lane unless I’m overtaking a truck or something.

I just replaced the piece of junk XFi router with a proper Ubiquiti dream router 7. I didn’t think it would make this big of a difference, but wow. Had to keep the old thing in bridge mode though. I want to next replace the cable modem built into the thing, but Comcrap requires you either use their equipment for $20/mo or you have to pay for unlimited data for $30/mo. They actually change you more to have the pleasure of not using their junk equipment.