How to Choose Automotive Antifreeze?
2 Answers
Automotive antifreeze selection methods are: 1. Pay attention to the lower the freezing point the better. The basic indicators of antifreeze are freezing point and boiling point. Generally, the selected antifreeze's freezing point should be at least 10 degrees Celsius lower than the local minimum temperature to prepare for sudden weather changes; 2. Emphasize anti-corrosion function. The full name of antifreeze should be antifreeze coolant. Antifreeze prevents coolant from freezing and expanding to crack radiators or damage engine cylinders when parking in cold seasons. Antifreeze should be used year-round, not just in winter. In regular vehicle maintenance, engine antifreeze should be replaced every year, with higher replacement frequency for special vehicles.
I put a lot of thought into choosing antifreeze. First, I checked the vehicle manual—it tells you what type to use, like ethylene glycol-based or propylene glycol-based. Then, I picked a compatible brand and made sure not to mix colors randomly. Green and orange often indicate different formulations, and mixing them could clog pipes or corrode the radiator. The mixing ratio is also crucial—concentrated antifreeze needs distilled water, usually at a 1:1 ratio, though pre-mixed options are more convenient for those who prefer simplicity. Personally, I prefer long-life antifreeze, which lasts five to six years without needing replacement, saving both hassle and money. Safety is non-negotiable—always wear gloves when handling it, as it's toxic and shouldn’t come into contact with skin. Checking the old fluid is important too—if it’s cloudy or discolored, it’s time for a change. Keeping the cooling system clean ensures the engine’s longevity.
