Hey Howard! Great question. The waffle weave towels are designed more towards waterless wash. The waffle weave and waterless wash compliment each other. The waffle weave pattern will definitely pick up dirt better than the borderless grey. The waffle weave pattern is just more designed for that type of use. (I think. Don't quote me on that though) The borderless grey ones are more for rinseless wash, buffing product off, H20 G&G And other applications. Although no one says you can'!t try it But I'm not sure how well the results will be. I would also consider how plush that borderless grey towel is compared to the waffle weave. If you use the borderless grey on a dirty car it could potentially damage the towel and fibers of the towel; then you would be out of a towel or however many. Just something to consider!