if these engines are of the 470 mercruiser family check the seal behind the water circulating pump on front of engine is anti freeze oily if so check that specific engine ,heat exchangers ? or head gaskets are a good posibilty ! have a compression test done !
1 gallon
1 gallon in a standard antifreeze jug.
Top to bottom vegetable oil, kerosene, antifreeze, water.
Just mix up a 50/50 mix of antifreeze and distilled water and fill it up. A 2 gallon mix is usually plenty for most engines but this is a V10 so you may need slightly more or you may not.
One gallon of antifreeze mixed with half water
1 gallon of antifreeze mixed 50/50 with 1 gallon of distilled water will be enough to fill the system.
one gallon is equal to 4qt and a 1qt equal to 32oz
You want to use a 50/50 mixture of water and antifreeze, but use the manufacture recommended antifreeze, it comes straight anti freeze in which case you would mix a gallon of antifreeze to a gallon of water or you can buy a pre mixed container of antifreeze if your just trying to top off
It depends on how dilute the antifreeze is, for cars, antifreeze is usually a mixture of antifreeze and water. However, ethylene glycol is the main component of antifreeze with a density of 1.09 grams per centimeters cubed. Or 1.09 grams per mililiter which is 1090 grams per liter. One gallon is 4 quarts or 3.7854 liters. So, 1090 grams per liter, times 3.7854 liters equals 4125.65 grams. Times this by the conversion factor of 1 pound equal to 453.59 grams. Then, a gallon of ethylene glycol weighs about 9 pounds. An undiluted gallon of antifreeze weighs 9.33 pounds per gallon.
2 gallons.
Approx 1.86 gallons.
8 pounds