Flushes for Your Car- Coolant, Transmission, Steering and Brakes

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One of the more important car maintenance tasks that a driver can do for their car as it starts to get a little older is to get various parts of it flushed out by their trusted automotive service shop. This is so that the car can continue to run as efficiently and economically as it possibly can, for as long as it possibly can.

There are a variety of good reasons as to why this is important, especially in areas like the coolant, transmission, brakes, and the power steering. LoanMart is here to help provide some handy information that will illuminate why flushes are one of the best car maintenance tasks that can be done for an aging vehicle.

Flushes for Your Car

Flushing out different parts of a vehicle is an important thing to do, as it can help the vehicle run more efficiently, getting the driver where they need to go for much longer. Although flushes might end up tacking some extra money onto the total of the next oil change or other maintenance appointment, they are a necessary  expense from time to time.

In the long run, flushes are much more affordable to do than the repairs that would result from not doing them. No one wants to spend money that they do not have to, so it is a good idea to tend to these flushes as necessary. Below are some of the most important kinds of flushes that should be done on a vehicle from time to time, and how often they should be tended to.


Getting the radiator flushed out provides several benefits for the cooling system of a car. It is helpful to flush around 4-5 gallons of new antifreeze through the cooling system because it will push/flush out contaminants and old antifreeze out. Flushing the radiator will make it much cleaner and efficient in its operation. In addition to that, the additives in the coolant will provide some lubrication to the water pump.

A flush of the cooling system is important because allowing old antifreeze and contaminants to build up over time may end up causing the radiator to overheat, and possibly sustain some noticeable and serious damage. This should be done every 30,000-35,000 miles for a newer vehicle, and every 50,000-75,000 miles for an older vehicle.


Getting the transmission of a vehicle flushed out will clear out all of the gunk and build-up inside of it. Doing this makes the engine run better and longer because it will not have to work harder just to get the output it needs to have. Doing this will ensure the old fluid will be completely removed from the system.

Transmission fluid is usually green, yellow, or some times blue. There should be almost no smell to it whatsoever. When it starts turning brown and smells a bit burnt, it’s time to take the vehicle in for service. Like with the cooling system, flushing should happen every 30,000-35,000 miles for newer vehicles, and every 50,000-75,000 miles for an older vehicle.


A flush of the power steering system is one of the most important flushes that a vehicle can get, yet somehow often gets overlooked by most people. If this kind of flush continues to get overlooked by the vehicle owner, it could end up leading to difficult steering, noise, hardened seals, wear acceleration, as well as leakage. Not a laundry list of problems that anyone would ever want to deal with if they can avoid it. The power steering fluid should be checked every 30,000-35,000 miles and flushed out every 50,000-75,000 miles.


Another highly important flush (arguably the most important) that needs to be tended to is the brake system. Brake fluid will attract moisture, which in turn will rust the inside of the brake system. As a result, this will cause the brake system components to corrode. Keep in mind though, that flushing out the brake system means removing all brake fluid and putting all new fluid inside. Brake bleeding will only remove enough brake fluid to get any air bubbles out of the brake line.

When checking the brake fluid, it should be colorless or translucent. If the brake fluid has more of a rust-like color, that means moisture is getting into the brake system and a flush should be done. If  the brake fluid is black and/or burnt smelling, it is vital to get it to the mechanic right away. Nobody wants to have to deal with a failing brake system, as that can lead to even worse problems.

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