Emergency Kits, Traction and Recovery

This section covers two situations that get bundled together and should not be. Being stuck means the car is fine and the tires will not grip - a shovel and a set of mats fix that in ten minutes. Being stranded means you are not going anywhere for a while, and the thing that matters is staying warm until somebody arrives.

The equipment for the first is cheap and specific. The equipment for the second is mostly a blanket, a phone charger and enough fuel to run the engine in bursts. Most prebuilt kits are excellent at the first and almost silent about the second.

What a prebuilt kit is actually for

A "126-piece emergency kit" contains perhaps eight things you would ever use and a hundred and eighteen adhesive bandages. Piece count is a marketing number. The things worth checking are these:

• Jumper cable gauge. Lower is thicker. 8 AWG is fine for a car and thin for a truck; most kits do not publish it at all, which is itself information.
• A reflective triangle and a hi-vis vest. Cheap, boring, and the most useful items in the bag if you are stopped on a shoulder in the dark.
• A shovel, if it is sold as a winter kit. A winter kit without a shovel is a general roadside kit with a snowy photo on the box.
• A tow rope with a published load rating. An unrated rope under load is a genuinely dangerous object.

Whether to buy a kit at all, or build your own from better individual parts, is worked through in prebuilt vs DIY winter car kit.

Traction: mats, socks or chains

Three products, three genuinely different jobs, and a lot of confusion between them.

• Traction mats and recovery boards go under a spinning wheel to get you moving. They are a recovery tool, not a driving aid, and the specs that matter are length and load rating.
• Snow socks are textile covers you drive on. Far easier to fit than chains, far less durable, and whether they satisfy a chain-control requirement is a state-by-state legal question rather than a product one.
• Chains are the reference standard. Best traction, worst installation experience, and the thing a chain-control sign is literally asking for. Some vehicles do not have the clearance for them at all, and the owner manual will say so.

The head-to-head is in traction mats vs snow chains, and if you are stuck right now, start with how to get a car unstuck from snow instead of buying anything.

Mat length is the spec to compare

A traction mat has to be long enough to give you more than one wheel revolution of grip. On a typical car tire, one revolution is roughly 78 in of ground travel. A 13 in mat gives you a nudge. A 39 in mat gives you half a revolution and enough momentum to reach ground that grips. Two mats, one per driven wheel, is the normal configuration.

Load rating is the second spec, and the one that separates a board that bridges a rut from one that folds into it. Some makers publish it; most do not. We list it where it exists and say so where it does not.

All-wheel drive does not change the answer

All-wheel drive helps you accelerate. It does nothing at all for braking or cornering, both of which are limited by the tires. That is why AWD cars are so often the ones in the ditch - they get up to speed confidently and then discover that stopping is a separate problem. The detail, including whether you still need chains, is in do you need snow chains with AWD.

The list, if you only read one thing

The single most useful page in this section is the checklist of what to keep in the car: what to keep in your car in winter. It costs nothing to read and most of it you already own.