This is a common taunt I get from my co workers. The ones who zoom by me doing 120 km/h while I “sputter” along at 100 km/h. “No, Im just a slow driver.” Is my usual reply. I’m actually thinking “What is up with using at least 20%-30% more gas to get here? Who would CHOOSE to do this? And this is not even considering vehicle type, we don’t even need to get into that discussion here. The faster you drive whatever type of vehicle you drive, you use exponentially more gas the faster you go. Let me give you an example. Say you drive 100km/h, and you use 7.0 L/100km at that speed. Now, you decide to drive 110km/h, 10% faster, you actually use much more than 10% more fuel, some websites put this at as much as 17% more! And what if you decide to fly to work at 120 km/h? Again, up to 25% less fuel-efficient! From what I have read on-line and the charts and graphs I have seen online, virtually all cars/SUVs seem to be at their most efficient around 90 km/h.
Why am I driving 100 km/h and not 90 km/h then? Great question. If I go that speed, 99% of the cars are going to need to pass me, and I don’t feel it is safe to have every car have to pull out to pass me. Way to many people can’t drive as it is, if you haven’t noticed. So I’m trying to make a few less cars pass me. Also, many people seem to travel 120 km/h, and going 90 km/h, is quite a speed difference, someone not paying attention will come up on you very quickly. If I had the highway all to my self, I would definitely do 90 km/h.
A couple of brief points to finish off. Driving a reasonable speed such as 100 km/h is of course much safer compared to 120 km/h. Also, you should find the need to brake less when drive slower, and if you do need to brake, it will be that much easier on your brakes. And of course by using less fuel we are helping out the environment as well. Want to find out more? Google is your friend people, also check out hypermiling for mileage maximizing tips. Why don’t I take it to the next level and hypermile? The name of this blog says it all.