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Nissan Matic fluids - For Nissan and Infiniti vehicles: Matic D is for 3- and 4-speed transmissions, Matic K is for 6-speed front-wheel-drive transmissions, Matic J is for 5-speed rear-wheel-drive transmissions, Matic-S fluid supersedes Matic-J fluid. ATF-HP - For 2005 and later Subaru vehicles, except CVTs. 2004 and earlier Subaru vehicles use ...
A coolant is a substance, typically liquid, that is used to reduce or regulate the temperature of a system. An ideal coolant has high thermal capacity , low viscosity , is low-cost, non-toxic , chemically inert and neither causes nor promotes corrosion of the cooling system.
As the radiator cools the fluid, the coolant becomes denser and falls. This effect is sufficient for low-power stationary engines, but inadequate for all but the earliest automobiles. All automobiles for many years have used centrifugal pumps to circulate the engine coolant because natural circulation has very low flow rates.
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Only the fixed parts of the engine, such as the block and head, are cooled directly by the main coolant system. Moving parts such as the pistons, and to a lesser extent the crankshaft and connecting rods, must rely on the lubrication oil as a coolant, or to a very limited amount of conduction into the block and thence the main coolant. High ...
The term engine coolant is widely used in the automotive industry, which covers its primary function of convective heat transfer for internal combustion engines. When used in an automotive context, corrosion inhibitors are added to help protect vehicles' radiators , which often contain a range of electrochemically incompatible metals ( aluminum ...
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Waterless coolant is a glycol-based liquid substance that does not contain water. Its boiling point of 191 °C (375 °F) is higher than that of water-based coolants and it resists the formation of corrosion . [ 1 ]