Description Reviews Pentofrost NF Antifreeze Concentrate - Environmentally Friendly Nitrite-Free Antifreeze. Pentofrost NF is an environmentally friendly antifreeze concentrate for multipurpose applications in water-cooled engines. It does not contain any nitrites, amines or phosphorous containing additives. Pentofrost NF protects all material used in cooling systems and is recommended for non ferrous metals and year-round use. Meets ASTM D-3306. This jug is 100% concentrate, which means you need to add your own water (distilled water is best). MINI recommends a 50/50 mix and that will protect your MINI from -34 deg F (-37 deg C) up to 265 deg F (130 deg C). They also recommend a coolant flush every two to three years depending on conditions and model year; and this is even more important in the Gen 2 & 3 Turbo cars since the coolant cools the turbo and the coolant cooks itself so quickly. So, we highly recommend every two years for all the Gen 2 & 3 cars. Every car will need up to two jugs to complete the job correctly (one jug coolant, one jug water mixed to 50/50) depending on the amount of coolant that you can get out of the car (not every drop will come out). The first 50/50 mix will go right in quickly, then you will use ¼ to ½ of the second mix, you then have some on hand to top off the system as needed. Make sure to bleed the system correctly to get all the air out and it is topped off correctly. There is a bleeder screwed onto of the thermostat on most cars to help with this, and they system self bleeds to the tank as you drive the car also. But it's best to have 98% of the air out before driving. Note: Will work for all models and years. MINI or BMW (as well as most any other car). Sold by the Jug. Sorry, we cannot ship this overseas as it is considered hazardous.