Spotting abnormal tire wear and correcting the cause can significantly extend tire life. Normally, tires will wear evenly across their surface until they reach the wear bars, which are 2/32nds of an inch above the bottom of the tread. When the tires are worn to the wear bars, they should be replaced.
One shot (1.5 ounces) of espresso has about two tablespoons of coffee (about 1/4 ounces). For best flavor, one shot of espresso, or two tablespoons of coffee, should be used to make 6 ounce of coffee drink. Likewise, a 12 ounce coffee drink will taste best with two shots of espresso.
A normal single cup of espresso is approximately 1 to 1.5 ounces of beverage, using approximately 7grams (1 tablespoon) of ground coffee and brewed over about 25 seconds (25 to 30 seconds). A normal double cup is between 2 and 3 ounces, using double the volume of coffee grounds (the same time - 25 to 30 seconds).