Hobbies Cars & Motorcycles Keep Your Brakes at Full Force Share PINTEREST Email Print Clean the brake fluid reservoir before doing anything. princessdlaf / Getty Images Cars & Motorcycles Cars How Tos Buying & Selling Basics Reviews Tools & Products Classic Cars Exotic Cars Corvettes Mustangs Tires & Wheels Motorcycles Used Cars SUVs Trucks ATVs & Off Road Public Transportation By Matthew Wright Matthew Wright has been a freelance writer and editor for over 10 years and an automotive repair professional for three decades specializing in European vintage vehicles. our editorial process Matthew Wright Updated August 12, 2018 If you had to pick one thing your car can't be without (please don't say the cupholder) it would be the brakes. A perfect running car that starts on the coldest mornings and purrs like a milk-faced kitten doesn't amount to much if you can't stop when you need to. That's why you should be sure to take good care of your car's braking system. This includes keeping your brake pads replaced, inspecting your brake rotors and, of course, making sure there is enough clean brake fluid to keep the system operating correctly. Check Your Brake Fluid Level Most, if not all, vehicles on the road today have a brake fluid reservoir that allows you to see through so you can check the fluid level without opening the cap. The brake fluid reservoir will be located toward the back of the engine bay on the driver's side, up high where it's easy to access. Once you locate the brake fluid reservoir, you will see markings on the side that tell you if you need to add any brake fluid. You may need to clean off a little road grime to see the marks clearly. They are usually labeled simply MIN (for minimum) and MAX (for maximum). These level markers indicate the minimum and maximum safe levels for brake fluid in the reservoir. If it's been forever since you bled your brake system, you may consider bleeding first, as this can change the fluid level considerably. Any fluid level that is found to be between If you do need to add some brake fluid, be sure to follow these tips. If you check the level of your car's brake fluid and discover it low, don't sweat it, you can have things tip-top in no time at all. Before you remove the cap to the brake fluid reservoir, wipe the area down thoroughly with a rag. Your braking system is sensitive, and foreign materials creeping in can clog or degrade its components. Start off clean and avoid any problems. With the cap off, slowly add fluid until it rises to the appropriate level. Replace the cap and go about your business. Give the brake pedal some strong pumps to gurgle out any air that might be at the very top of the system, then recheck the level and add more if necessary. In a day or two, recheck the level to be sure you don't need to add any more. Remember the following tips as you check and maintain your brake fluid level: Always clean the area around the cap. Never shake brake fluid! Add brake fluid slowly. Recheck in a few days. One more thing: never shake a bottle of brake fluid before you add it to your car. The little bubbles can cause big problems.