I find reverse not all that good for fuel consumption!
I travel about 2 seconds behind trucks, sometimes a bit more, depending on the conditions. We don't seem to have a lot of debris thrown up on our roads. All trucks must have mudguards and most of the newer trucks have those anti-spray mudguards, so that helps a lot.
![](https://www.industrialbrushware.com.au/newsite/assets/uploads/images/category_images/spray_suppresant/spray_suppressant_03.jpg)