John Deere Maintenance Monday: Checking antifreeze
Check the color
Pay attention to the color of the liquid, too. It will tell you a lot about its condition.
"If it's kind of a bright green, or a fluorescent yellow, that's kind of what you want to look for," Kershner says. "As some of the coolant or antifreeze breaks down over time, it may turn to more of a rust color, or have a watery, more translucent look to it. That's a good indication that you're probably going to need to flush the radiator, clean it out, and put some new coolant in the machine."
Kershner recommends that you flush the radiator every two years to keep it working properly. Check the hoses and clamps, too, to make sure there aren't any leaks. And a safety note: you never want to remove the radiator cap while the engine is hot. The system is pressurized, and it holds everything in. It'll blow and spew hot liquid on you if it's not cooled down.
Al gets a free John Deere cap for submitting his maintenance question, and you will, too, if we use your question in our program.
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