Issue link: http://read.uberflip.com/i/637584
49 DIESELTECHMAG.COM MARCH 2016 DIESEL TECH Prep Fluid just to make sure, which of course is a must. We poured the gallon jugs into a clean 5-gallon bucket and then vacuumed it in which was not only easier, but also cleaner. With the Prep Fluid now in our truck, we next started the LBZ and ran it for 15 minutes as directed. Running the truck with the heat on high ensures the coolant will be circu- lated throughout the heater core. Step Three The draining process that was done in Step One was repeated to remove the Prep Fluid and once again Manny was able to blow out any excess fluid. Reminder: a low pressure shop vacuum for lower type pressure is ideal for this step. Step Four Using the bucket and vacuum sys- tem again, Evans High Performance Waterless Engine Coolant was added. We ran the truck again for another 15 minutes to ensure thorough flow through the heating circuit, and then using the provided test strips we were able to ver- ify that we had done this entire process correctly. A color chart helps determine the truck's water content and we came in safely just below the three percent range. Step Five The last and final step may not seem that important, but we added the "Do Not Add Water" sticker to the cap. We know we now have the Evans product in our truck, but a future shop or even a friend trying to help might try and add water for some reason down the road, so it's important to add the warning labels. Final Thoughts After switching to Evans High Performance Waterless Engine Coolant our overheating issues are a thing of the past. At the time the process of making sure all the water was removed seemed to be a little excessive, but it really wasn't too time-consuming after all. And because of the long life (protects for the life of the engine) we're really in a good situation moving forward. There is an investment up front when you buy the coolant, which is available through sev- eral dealers nationwide. On average the Prep Fluid will run you around $32 a gal- lon and the Waterless Coolant sells for approximately $45 a gallon. However, when you factor in the benefits, the wider range from freezing to boil, plus the corrosion protection and long life, once you make the initial investment you should be good. We would, of course, recommend keeping a spare gallon with you at all times. —Roy Sparks, DT Magazine DT Application Function Durability Improvement Price PRODUCTS 90 15/20 49/50 10/10 10/10 6/10 888-990-2665 www.evanscooling.com