Thursday, 8 January 2015

Calculate Engine Coolant

Calculating extent of coolant relies on a combination of coolant/inundate ratio and cooling system capacity.

Engine coolant, or antifreeze, protects your engine from damage associated with freezing temperatures. It also helps lubricate engine components and prevents corrosion and rust. Therefore, even in warmer conditions, adding coolant to your radiator will help protect your engine. The fluid in your radiator is a combination of coolant and water, preferably distilled water. If it tells you the recommended ratio of coolant to water, make a note of that too.2. Analyze the coolant-to-water ratio. This figure might be in your car's owner's manual or the back of the coolant bottle.

The precise concentration is usually printed on the back of your coolant bottle, but you can calculate the amount of coolant by first deciding the ratio desired.


1. Look in the specifications section of your vehicle's owner's manual and locate the cooling system capacity.

If in doubt, 50 percent is generally recommended.

3. Multiply the cooling system capacity by the coolant-to-water ratio to calculate the amount of coolant required. As an example, if your cooling system holds 16 quarts of fluid, you would multiply by 16 times 0.50, which is the percentage expressed in decimal format. This results in 8 quarts of required coolant.