Before the start of the winter season, the concentration of antifreeze should be checked regularly, especially if clean water was added.
The engine must not reach operating temperature. The measuring device must show the nominal coolant temperature (usually 21°C, i.e. room temperature).
Open the expansion tank cap.
Take the coolant with the help of an aerometer and read its density on the float. There should be enough antifreeze to protect against frost down to -35°C. The ratio of concentrate to water is 1:1.
Adding Ford Antifreeze Concentrate
Example: as a result of the hydrometer measurement, the antifreeze content is sufficient to protect against frost down to -10°C. In this case, for a gasoline engine, drain 2.5 liters of coolant and add 2.5 liters of pure antifreeze concentrate instead.
Caution: Add only Ford approved antifreeze.
| Measured value in°C | 0 | -5 | -10 | -15 |
| Engine | Difference in quantity in liters | |||
| 4-cylinder petrol engine | 3,5 | 3,0 | 2,5 | 2,0 |
| Diesel | 4.5 | 3.5 | 3,0 | 2.5 |
Close the expansion tank cap and check the antifreeze concentration again after a test drive.
(The full article is on the online resource: www.FordBook.ru)