In a perfect world you would 
do laboratory oil analysis on all your equipment and even your pickup trucks, but we know most truck owners aren’t going to spend the money or the time. The Fluid Rx One-Drop Instant Lubricant Test kit isn’t as precise as a lab test, but it is a lower cost solution that gives you instant results. All you do is put a drop of oil on the pad and wait about a minute for the results to show.
