Winter Car Care: Essential Fluid Checks for Cold Weather

by AutoExpert   |  23 May, 2024

Share :

Hey there, gearheads! Winter's on its way, and just like you gotta bundle up, your car needs some prepping too. One of the most important things? Keeping its fluids happy! These magical potions keep everything running smoothly, and winter throws some curveballs that can mess with them. So, let's dive into the 7 key fluids you need to check before the snow flies.

Before we get greasy:

  • Crack open your owner's manual: This trusty guide will have all the info you need, from what each fluid cap thingy looks like to the perfect fluid types for your car.
  • Park on flat ground: Tilted cars mean wonky fluid readings. No good!
  • Warm up the engine: Cold fluids can be misleading. Run the engine for a bit, then shut it off before checking.

Fluid Checks

Now, onto the good stuff!

  • Engine Oil: The lifeblood! As things get chilly, oil gets thicker, making it harder to do its job. An oil change might be due anyway, but if not, consider a winter-grade oil for better performance in the cold.   

Fluid Checks

  • Coolant: Don't let your radiator freeze over! This magic mix of water and antifreeze (in the right ratio, check your manual!) stops your engine from turning into a giant ice cube. Keep an eye on the coolant level and top it up using the expansion tank (don't mess with the radiator cap, hot coolant can erupt!).

Fluid Checks

  • Transmission Fluid: Keeping things shifting smoothly. Just like engine oil, transmission fluid can get sluggish in the cold, affecting how you change gears. For older cars, check the fluid level and condition regularly, and maybe even consider a flush if needed. Newer cars might have sealed transmissions that need a pro to service, so check your manual.

Fluid Checks

  • Brake Fluid & Power Steering Fluid: Keeping you in control! These fluids absorb water from the air, which is bad news for winter driving. Replace your brake fluid every two years, and keep an eye on the level (between the min and max marks). If it's dirty or discolored, flush the system. For power steering fluid, check the level and condition. If it's thick, your steering will feel heavy. Top it up or replace it as needed, but don't mix these fluids up! Use the kind your car manual tells you to.

Fluid Checks

  • Windshield Washer Fluid: See clearly, drive safely! Standard water won't cut it in winter, it'll just freeze solid. Get yourself some winter-grade windshield washer fluid that can handle the cold. This will keep your vision clear and your wiper blades happy.

Fluid Checks

  • Battery Electrolyte (for older cars only): Modern batteries are sealed and maintenance-free, but some older ones need a top-up with distilled water. If yours has removable caps on top, keep the water level good, especially in winter when the battery works harder.

Fluid Checks

Keeping these 7 fluids in top shape will keep your car happy and reliable all winter long. No breakdowns on the side of the road in the freezing cold, that's the dream! If anything feels confusing, don't hesitate to consult your mechanic or trusty owner's manual. Happy winter driving!

Top News

Recomended:

Car Limp Mode vs. EV Turtle Mode: Causes & 2026 EPA Updates - Photo
Others
Car Limp Mode vs. EV Turtle Mode: Causes & 2026 EPA Updates

Over the years, car companies figured out they needed to idiot-proof engines and transmissions. Limp mode is their answer. When something breaks, the car basically hobbles itself on purpose so things

AutoExpert
The Chevy Stovebolt Six: The 72-Year Legacy of the
Others
The Chevy Stovebolt Six: The 72-Year Legacy of the "Cast-Iron Wonder"

Nobody at Chevrolet actually named it the Stovebolt. When the inline six-cylinder showed up in 1929, gearheads took one look at those slotted bolts holding the pushrod covers and oil pan together and

AutoExpert
The Heavy Truth: Why Your 2026 Car Probably Has an Aluminum Hood - Photo
Others
The Heavy Truth: Why Your 2026 Car Probably Has an Aluminum Hood

Cars are getting heavier every year, and there's no sign of it stopping. The EPA has been tracking this since the early '80s, and new vehicles just keep adding more weight. Electric batteries,

AutoExpert
Michelin vs. Uniroyal: The Tire Satisfaction Report Is Out - Photo
Others
Michelin vs. Uniroyal: The Tire Satisfaction Report Is Out

Buying tires is one of those boring grown-up chores that nobody enjoys. It costs a lot, it feels confusing, and once they’re on the car, most people are just hoping they did not make a bad cho

AutoExpert
Toyota Tundra vs. The World: Which Truck Reaches 250,000 Miles? - Photo
Others
Toyota Tundra vs. The World: Which Truck Reaches 250,000 Miles?

People love to argue Ford vs. Chevy when it comes to trucks. But if the question is “which one is most likely to still be running at 250,000 miles,” the answer is… Toyota Tundra.

AutoExpert
100-Car Michigan Pileup: How to Survive a Winter Highway Nightmare - Photo
Tips & Tricks
100-Car Michigan Pileup: How to Survive a Winter Highway Nightmare

Over 100 cars just smashed into each other in Michigan. Don't let this be you.Winter driving already sucks enough without worrying about getting caught in one of those insane multi-car pileups

AutoExpert
Stop Driving Like It’s 1995: 5 Habits You Need to Quit in 2026 - Photo
Tips & Tricks
Stop Driving Like It’s 1995: 5 Habits You Need to Quit in 2026

Modern cars have changed. Your driving habits should too.Cars today are nothing like the ones people learned to drive on 20 or 30 years ago. They've got sensors everywhere, computers handling

AutoExpert
The Physics of the Flip: What Does That Tab on Your Rearview Mirror Do - Photo
Video
The Physics of the Flip: What Does That Tab on Your Rearview Mirror Do

It's not decoration; it's saving you from getting blinded at night.Most people have driven past that little tab on their rearview mirror a thousand times without really thinking about what

AutoExpert
Green is the New Gray: The Global Car Color Report Is Out - Photo
Others
Green is the New Gray: The Global Car Color Report Is Out

The car color situation is still depressing, but there's a tiny glimmer of hope.Car colors have been boring as hell for years now. Everyone just buys white, black, or gray like we're livin

AutoExpert
90 Years of the Chevy Suburban: History, Hollywood, and Specs - Photo
Others
90 Years of the Chevy Suburban: History, Hollywood, and Specs

Seriously, what's it going to take to kill this thing? The Suburban hit 90 this year. That's insane. Your great-grandparents could've bought one new. And here we are in 2026 and Chevy

AutoExpert