10Prestone TSB for Training130009252017

Technical Service Bulletin Page 7 PCTSB-2017-01 PRESTONE PRODUCTS CORPORATION 1900 West Field Court, Lake Forest, IL 60045 ©2017 Prestone Products Corporation Use test results from pages 5 & 6 to make determinations (see below) “Making Determinations” ONLY APPLY to CONVENTIONAL IAT COOLANTS • It is not recommended to add current NOAT or NF OAT coolants to a conventional IAT fluid. • Make all fluid determinations before making concentration or level adjustments. NOTE: When using test strips follow the test instructions on the test strip card or bottle. (When using Prestone test strips it is advisable to use the color standards on the cards) Warning: Do not open the cooling system if engine is hot! Wear gloves, if skin contacts fluid wash immediately. TEST INSTRUCTIONS Collect coolant sample from the radiator or petcock at room temperature. Remove a strip from the bottle (do not touch pads on strip). Dip the strip in coolant sample for 2 seconds. Remove and shake strip briskly to remove excess liquid. Hold strip level and wait 20 seconds, then match Freeze Point and pH to color chart. After 1 minute, match Nitrite to color chart. Prestone Command test strip AFC220 should only be used for purple IAT/ESI fully formulated HD coolants. Making Determinations: 1. If the pH level is below 8.0: • Remove any SCA filters and flush the cooling system with water and fill with new coolant, preferably Prestone Command ® HD NF Extended Life Antifreeze/Coolant. • If the cooling system shows visible signs of contamination flush the system with Prestone Command ® Heavy Duty Cooling System 2in1 Flush & Degreaser, then flush with water to remove chemical flush solvent and refill with Prestone Command ® HD NF Extended Life Antifreeze/Coolant. 2. If the pH level is between 8.0 – 11.0 and the nitrite level is between 1200 and 3000: • The fluid is OK. • If needed top off with Prestone Command ® HD Extended Service Interval Antifreeze/Coolant or water to adjust the level and concentration. 3. If the pH level is between 8.0 – 11.0 and the nitrite level is below 1200: • Remove any SCA filters and flush the cooling system with water and refill with new Prestone Command ® HD NF Extended Life Antifreeze/Coolant. • If the cooling system shows visible signs of contamination flush the system with Prestone Command ® Heavy Duty Cooling System 2in1 Flush & Degreaser, then flush with water to remove chemical flush solvent and refill with Prestone Command ® HD NF Extended Life Antifreeze/Coolant. 4. If the pH level is above 11.0: • Remove any SCA filters and flush the cooling system with water and fill with new coolant, preferably with Prestone Command ® HD NF Extended Life Antifreeze/Coolant. • If the cooling system shows visible signs of contamination flush the system with Prestone Command ® Heavy Duty Cooling System 2in1 Flush & Degreaser, then flush with water to remove chemical flush solvent and refill with Prestone Command ® HD NF Extended Life Antifreeze/Coolant. When utilizing Test Strips do not use the above color chart. Use the color chart on the Test Strip Bottle or individual card. HD Conventional Coolant (IAT) Testing Fluid Conversion/Maintenance Plan