2019 NAPA Reference Guide

NAPA Standard Service Interval (S.S.I.) Coolant Products How To Use NAPA S.S.I. Coolant Products With Supplemental Coolant Additives (S.C.A.s) Initial Installation For best product and system performance, the following procedures are required: 1. Start with a clean cooling system. If you system is dirty, completely drain the entire system and chemically clean it with a heavy duty cooling system cleaner. After the system has been cleaned, thoroughly flush the entire system with clean water to insure all the chemical cleaner is removed. 2. Refill your cooling system with the following: 40% to 60% low silicate glycol based antifreeze and clean, soft water. The antifreeze can be either ethylene or propylene glycol type. Engine manufacturers recommend using 50% antifreeze and 50% suitable water. Clean soft water is defined as clear water containing no more than the following: Chloride – 40 parts per million or less Sulfates – 100 parts per million or less Hardness – 170 parts per million or less (Calcium/Magnesium) The preferred water for use in cooling systems is deionized, distilled or demineralized. However, if you are using tap water and are unsure of its suitability for use in your cooling system, consult your water supplier for the values of these contaminants or have it evaluated by our coolant analysis laboratory. 3. Refer to the initial service and maintenance chart. Find your cooling system’s TOTAL CAPACITY in the left hand column. Then to the right, under column labeled initial installation, find the correct NAPA S.S.I. coolant product for your system. Install the correct filter and if necessary, the correct amount of NAPAKool™. Your cooling system is now ready for use. (Maintenance charts are also included with each filter). S.S.I. Maintenance Procedures 1. Find your cooling system’s TOTAL CAPACITY under the maintenance section of the chart. Then to the right of the capacity, select the correct maintenance filter or filter and NAPAKool™ liquid combination for the maintenance interval desired. Properly install the selected products in your cooling system. 2. Use a NAPA Cooling System Test Kit. To insure that the antifreeze concentration, the coolant’s pH level and the NAPA coolant conditioner additives are at the proper level, check the cooling system condition every 250 hours or 15,000 miles with a NAPA test kit. If testing indicates some maintenance is necessary, please follow maintenance instructions on the text kit instruction card. If your maintenance schedule calls for exceeding 250 hours or 15,000 miles for cooling system maintenance, our Extended Service Interval (E.S.I.) products should be used. Dispose Of All Used Cooling System Products in Accordance With All Applicable Laws and Regulations. 1048