positive-the primary form of an adjective or adverb; denotes a quality without qualification, comparison, or relation to increase or diminution. positive degree. adjective-a word that expresses an attribute of something. adverb-a word that modifies something other than a noun.
It's summer. It's stinking hot. And for any silly person who leaves their pets (or any imbecile who leaves their kids) inside a parked car, watch this video where a doctor traps himself inside a parked car to see how how it gets. Even with all four windows cracked down a bit, the car temperature reaches 117 degrees in only 30 minutes. And no. Even if you leave your pet inside for just five minutes, the temperature already spikes and becomes miserable.
If your radiator cap is no good, it will lower the boiling point of your coolant to 212 dgrees. A leak of any type anywhere in your cooling system will have the same effect. That is why you must have a good radiator cap on your car. Many people get worried if their car gets up to 220 degrees. On a hot day, going up a hill with your air conditioner on, that is a normal temperature, and is nothing to worry about, as long as you aren't losing coolant. You can safely operate to 240.