When driving on wet roads after a rain I don’t like to follow a semi. They kick up just too much mist from the wet road. I do like to be able to see when I drive. Some others don’t seem to care that much. We get accidents when they drive full speed into fog.
So I am driving down the highway after a rain storm and watching cars going the other direction. I can see just how much mist each one kicks up. Some leave a big plume and some hardly anything at all. I thought it may have to do with number of tires, like an 18 wheeler, but that is not all of it. An ambulance left behind it as much or more as the big boys and it has 6 tires.
So what is the difference. The only other factors I can think of is weight per tire, tire width, and tread design. Assuming I care about the guy behind me what tread design do I want for less plume. Or, is leaving a larger plume safer (for me the driver that is) or is leaving a small one safer. I was thinking kicking up more water might give me more traction but I don’t know.