On New Year’s Day, I roused myself to help out a disabled relative with a flat tire, relatively early in the day.

Some things done well and some lessons learned to recap:

• The relative pulled the car over in a safe place before doing anything else, and I very was happy about that
• The relative’s vehicle is well maintained for the most part
• I had purchased an aftermarket extendable lug wrench for this relative and it worked well, giving me plenty of leverage
• The owners manual was where it was supposed to be, which allowed us to confirm that the jacking point I wanted to use was correct
• Having wet wipes on hand was great
• Scissor jacks still work, but they also still suck
• The donut spare was good, but this was luck more than good equipment maintenance
• I would have been smarter to bring an impact driver, which I have — this isn’t as good as an air-powered impact wrench, but I know from experience that with a bit of care they are easier than a lug wrench
• The plastic fastener holding the hub of the donut spare in place was well and truly frozen, requiring me to get some pliers out of my emergency kit to unscrew it — I will be suggesting that my relative to put some additional tools in this car
• I forgot to put work gloves on before starting — while I didn’t hurt my hands this wasn’t smart and led to a large number of wet wipes being expended before we left
• There was standing water in the spare tire well which didn’t do the retaining fastener or the tools a lick of good — I will take on a regular task to inspect the spare tire well and the tools therein, and I might need to get the seals replaced for the hatch to keep the water out

Chaosmagnet, the only other thing I might mention is a long cheater bar. The last time I got the call I was near home and decided to stop by and grab the aluminum floor jack. The floor jack made jacking the car easy, pulling the handle off to use as a cheater bar was priceless. I was using enough force I wasn't sure what was going to give up first, my half inch ratchet, the stud, or the lug nut. Fortunately, it was the lug nut.

I've given up on scissor jacks for cars, last time I used one it collapsed and I dropped a Benz. That was entertaining, always happens when you have an audience. It really wasn't the jacks fault, the car had an electronic parking brake that was less than stellar. No one was harmed and I didn't hurt the car. Lesson learned, I carry a set of wheel chocks too.

The extendable lug wrench is in place of a cheater bar. I’m not sure that my relative would permit the emplacement of more tools in the vehicle.

I’ve procured an inexpensive “impact driver to lug wrench” set and a “drill to scissor jack adapter” bit that will live with my battery-operated power tools henceforward.

It wasn’t all that long ago that I learned that an impact driver (typically battery operated, designed for driving lots of fasteners quickly) is not the same as an impact wrench (typically operates on compressed air, designed for high torque applications). Impact drivers carry somewhat more risk of injury when used on lug nuts.

Up until now I haven’t wanted to invest in a nicer jack to carry around, or chocks, due to space constraints. If I ever go back to driving a larger vehicle I may feel differently, but the trunk of my car already has a lot in it. It would be easy enough to have those tools at home for issues like this though. I’ll look into it.

There are both impact drivers and impact wrenches that are battery powered. I have this battery powered impact wrench https://www.milwaukeetool.com/Products/2555P-20. One battery is sufficient to do a 5 tire rotation on my truck, so should be plenty for a car.

If your outfitting a friend/someone with a car put the cheater bar in the spare tire well. They can be used for more than just a cheater bar.

Thanks for the report

A few years ago, I added a tire pump in the car tool collection
It saved the day multiple times. When tubeless tires go flat, you can inflate them enough to drive to the nearest service station. This saves us older folks from the difficult (sometimes dangerous) task of changing tires

It is worth adding that as an option

I have an old jump start/air compressor my dad gave me. I had to replace the battery, was $70, but I toss it in the truck for any trips out of town or bike rides. Super easy to just clip it on the tire valve, flip the switch and sit back down and wait.

Both my car and my relative’s car have a “jump pack” that includes a compressor. These aren’t the very small (and IMO nearly worthless) lithium ion packs, they are large SLA units. They need to be charged monthly and after each use, and they are.

Just a suggestion to NOT tighten wheel lug nuts using an impact wrench due to their high torque. Tighten by hand - preferably with a torque wrench.