Brake fluid is the hydraulic link between your brake pedal and the calipers or wheel cylinders that actually stop the vehicle, transferring pedal pressure through the lines with virtually no compression loss. Over time, brake fluid absorbs moisture from the air, lowering its boiling point and leading to a spongy pedal, reduced stopping power, or corrosion inside brake system components. Browse DOT 3, DOT 4, and DOT 5.1 brake fluid for cars, trucks, and SUVs to keep your braking system responsive and protected.
Coolant circulates through your engine and radiator to carry away heat and prevent freezing, while additives supplement that base fluid with extra corrosion protection, water pump lubrication, or a boost to heat transfer. Running low-quality, diluted, or worn-out coolant is a common contributor to overheating, radiator and heater core corrosion, and water pump failure over time. Browse antifreeze, pre-mixed coolant, and cooling system additives for cars, trucks, and SUVs to keep your engine running at the right temperature.
Fuel system additives are poured directly into the tank to clean and protect components throughout the fuel system — injectors, valves, combustion chambers, and fuel lines — that gradually accumulate deposits from normal driving. Buildup in these areas is a common cause of rough idle, hesitation, reduced fuel economy, and lost power, especially in vehicles running lower-quality fuel or sitting for extended periods. Browse fuel injector cleaners, fuel stabilizers, and other fuel system additives for cars, trucks, and SUVs to keep your fuel system running clean.
Gear oil is a heavier-viscosity lubricant formulated for the high-pressure, metal-on-metal contact inside differentials, transfer cases, and manual transmissions — conditions standard motor oil isn't built to handle. Low or degraded gear oil is a common cause of whining or grinding noises from the differential, harder shifting in a manual gearbox, and accelerated wear on gears and bearings. Browse conventional and synthetic gear oil in a range of weights for cars, trucks, and SUVs to keep your drivetrain properly protected.
Grease is a thick, tacky lubricant designed to stay put in components that can't hold liquid oil — wheel bearings, ball joints, U-joints, and other chassis points that see constant friction and need protection that won't drip or fling off under load. Dried-out or missing grease is a leading cause of premature wear, noise, and eventual failure in these components, especially on parts with a grease fitting meant for regular service. Browse wheel bearing grease, chassis grease, and specialty greases for cars, trucks, and SUVs to keep high-friction components properly lubricated.
Hydraulic fluid transfers force through a sealed system with minimal loss, making it the working fluid behind power steering, hydraulic clutches, and other pressure-driven components on a vehicle. Low or contaminated hydraulic fluid is a common cause of stiff or noisy power steering, a soft or unresponsive clutch pedal, and accelerated wear on pumps, seals, and hydraulic lines. Browse power steering fluid, hydraulic clutch fluid, and related hydraulic fluids for cars, trucks, and SUVs to keep these systems operating smoothly.
Motor oil lubricates every moving part inside your engine, reducing metal-on-metal friction while also helping to cool components and carry away contaminants until they're captured by the filter. Running the wrong viscosity, degraded oil, or oil that's overdue for a change is one of the leading causes of premature engine wear, increased oil consumption, and — in severe cases — catastrophic engine failure. Browse conventional, synthetic blend, and full synthetic motor oil in a range of viscosities for cars, trucks, and SUVs to keep your engine properly protected.
Transmission fluid lubricates internal components, transfers hydraulic pressure to control shifting, and helps cool the transmission — a job different enough from motor oil that using the wrong type can cause real damage. Low, degraded, or incorrect fluid is a common cause of harsh or delayed shifts, slipping, overheating, and premature wear on clutches and bands inside automatic transmissions. Browse automatic and manual transmission fluid, matched to your vehicle's specification, for cars, trucks, and SUVs to keep your transmission shifting the way it should.
