How To Prepare Ford Mustang for Winter?

By Nick Marchenko, PhD

Updated: July 10, 2023

As the chill of winter takes hold, we trade in our light, breezy clothing for heavier, warmth-retaining outfits to guard against the frosty weather. In a similar vein, Ford Mustang owners face the task of winter-proofing their vehicles, gearing them (and themselves) up for any icy winter hurdles.

The process of winterizing a Ford Mustang is a clear-cut one, but it calls for a certain level of commitment and patience.

It's always better to winterize your car in advance than wrestling with an unexpected problem without the necessary tools or know-how.

Ford Mustang Pre-Winter Checklist

Winter weather can often throw curveballs - unpredictable and potentially perilous. Slick roads layered with snow and ice, coupled with freezing temperatures, demand drivers to be exceedingly careful - the Ford Mustang too needs to be well-prepped to tackle any winter adversities head-on.

Tires 

Just as we need the right shoes for winter, cars demand winter "tires" to ensure proper grip on snowy terrain. It's advised to switch your summer tires to winter ones once the mercury dips to about +7 Celsius (+44 Fahrenheit).

Inspect your winter tires' tread depth, rubber condition, and air pressure to make sure they're up to snuff. During winter, it's wise to check your tire pressure more often as the cold can cause tires to lose air more quickly. As a rough guide: a 10-degree drop translates to a 1 PSI decrease.

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The cardinal rule here is to switch your Ford Mustang tires ahead of time. You wouldn't want to be caught in a long queue waiting your turn. Not to mention, this will save you both time and headache.

Brakes

In addition to ensuring solid winter traction and acceleration, it's vital to pay attention to your braking ability, particularly on slippery surfaces like ice and snow. Inspect your Ford Mustang brake pads and rotors to ascertain they're in sound condition and can offer peak braking performance.

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Battery

Chilly winter temperatures can take a noticeable toll on the capacity of your Ford Mustang's battery. When temperatures dive to harsh extremes, such as -30 degrees, the battery's typical energy can drop by 30% or more.

This power might be insufficient to kick-start your Mustang. During the winter, if your Ford Mustang isn't frequently used, let's say, less than every couple of days, you might discover your battery has essentially run out of juice. In these cases, you may need a kind stranger's assistance or have to bring the battery home for a recharge.

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Oils

Before the frost makes its presence felt, it's essential to change the Ford Mustang's oil and oil filter. The oil functions to lubricate the engine's metal parts, shielding them from potential harm. The viscosity - or thickness - of the oil plays a crucial role in how the engine performs.

If the oil is overly thick, it will move sluggishly over the parts, potentially leading to engine overheating.

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During winter, as the mercury drops, the oil becomes thicker. However, this problem can be tackled by using oil with a lower viscosity (low viscosity index oil) specially designed for winter conditions.

Coolant

As winter approaches, it's necessary to swap your usual coolant for an antifreeze solution. Antifreeze doesn't only protect your Ford Mustang's engine in cold conditions, but it also prevents the components from corroding. 

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Keeping an appropriate level of antifreeze is vital. A 50:50 mix is ideal and prevents the fluid from freezing even at extreme cold temperatures (-40 degrees).

If the level of antifreeze is too low, the coolant may freeze, potentially resulting in engine overheating and the need for one or more gasket replacements.

Consumables

Spark plugs, wires, cables, belts, and hoses should all get a thorough check-up before you dare the frosty roads. Don't shy away from lifting the hood and examining everything in detail. If you spot an issue, it will help you address it right away.

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Taking a proactive stance on potential problems now is always better than encountering them unprepared on a snow-covered track.

Fuel Level

Operating on low fuel can pose a risk to your Ford Mustang at any time of the year, as you risk getting stranded with no opportunity to refuel. Cruising with a near-empty tank in winter becomes especially dicey.

The cold temperature and its frequent fluctuations can cause condensation to form on the walls of a half-empty tank, which can quickly lead to water contaminating the fuel.

Water is denser than gasoline or diesel, so it will settle at the bottom, brewing a significant issue: if water gets into the fuel line, it can freeze, blocking the fuel supply to the engine and putting a damper on your plans. Fixing such a malfunction can be rather costly.

Therefore, despite the occasional rise in fuel prices, maintaining a consistently full tank will both protect your vehicle and save you cash in the long haul.

Wiper Blades and Washer Fluid

Poor visibility in severe winter weather can pose serious threats, so it's critical that your Ford Mustang wipers are in top-notch condition.

Picture cruising the road at night when a sudden flurry of snow and rain strikes your windshield. You activate the wipers to boost visibility, but instead of clearing, they merely smear the windshield with their deteriorating rubber blades.

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Given that wiper blades are rubber, they can turn brittle and wear out over time. It's suggested to swap out your wiper blades every 6-12 months.

Additionally, don't overlook the Ford Mustang windshield washer fluid level - it's essential in wiping off snow and ice from your windshield. Remember to substitute the regular fluid for a winter-grade solution. You can pick these up at any service station.

Emergency Kit

The only constant thing on the road is unpredictability, especially in winter. However, you can be ready for most circumstances.

One of the best steps you can take is to keep a specialized emergency kit in your Ford Mustang. Ensure your kit includes the following essentials:

• Jumper cables;
• First aid kit;
• Window scraper and brush;
• Compact shovel;
• Warm clothing;
• Compact flashlight with batteries;
• Extra coolant or antifreeze;
• Car door lock defroster;
• Silicone grease for seals;

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Wrapping Up

As we've observed, prepping your car for winter isn't an overly complicated chore. Sure, it calls for a bit of your time and some necessities in your trunk, but it's far better to be ready for every imaginable winter situation than to find yourself stranded without any solutions.