Decades ago, I let others change my oil and rotate my tires. No longer. I have saved thousands of dollars in the process.
I thought it would be fun to share some skills that anyone with a motor vehicle should possess.
The idea with these basics involves both agency and thrift. I skip some tedious repairs on modern vehicles, like flushing the cooling system or swapping headlight, tasks I do.
Changing a tire: while rotating your tires is a relatively big undertaking even with a vehicle lift, changing a tire should be easy. It avoids helplessness by the side of the road. My nephew John Ryan insisted that his children should learn, along with learning to drive a manual-transmission vehicle. I mentioned this in an earlier post about avoiding “learned helplessness.How To Learn: The best way to learn is to read the owner’s manual. Learn the order of tightening wheel lugs and how to do so correctly. Next, practice jacking up a car on a level surface. Lower it. With the tire on the ground, see if you can loosen a lug. If not, you may want to purchase a better wrench. I got one from Amazon that I use on cars, trucks, a camping trailer, and tractors.
Simple Safety Props: Pack a few 10” pieces of 2x6 wood in the car, too. One can be a block to place the jack on, if you find yourself with a flat on soft ground or even the volcanic grit of Iceland, which is where my last flat happened. The second block can chock a wheel on the side of the car not lifted.Checking and changing your oil: the former is wise, and though the latter is often dirty work, even with a lift, it is rewarding. It also can save you thousands over the life of the vehicle. I used to do oil changes while lying in the street in front of the house, before I had a garage.
Tools Needed: You can buy ramps, or go with a good floor jack and jack stands for safety, plus an oil catch-pan. I do this for our Miata, too small for the lift. I set the handbrake and leave the car in gear (park when an automatic) when I have it on the stands or ramps, with those wooden blocks mentioned earlier, set behind the rear tires.
Watch lots of videos first for your vehicle. Draining the oil pan is easy but removing a filter on some vehicles takes research, practice, and the right combination of extensions for your socket wrench. I own lots of cup-style filter sockets. They are cheap and generally perform better than the old universal oil-filter wrenches of my teens.
Learning Those Codes! Some folks panic when the "check engine light" appears on the dash. I get out my cheap OBD-II scanner and my phone. I picked up the scanner for less than $20 and after trying some free phone apps, went with one I think cost me under $10, called OBD Fusion. It reads the codes on your car, using a public network called OBD-II that your phone will detect the moment you plug in the scanner.
You will look really impressive when you go into your local shop and say "my scanner shows an EGR error code" but you'll have to first read the scanner number and look it up on the phone or elsewhere. My 2003 Chevy truck recently showed a "PO165" error code. Luckily, the OBD Fusion software also showed me that it was an oxygen senor, even which of four needed replacing. For me it's a DIY job, but that requires a lift or lots of agility under a safely-jacked and supported vehicle.
A dishonest shop might add extra things to your bill, but if you walk in and say "I need O2 Sensor #1 in Bank 1 changed," you won't be ripped off.
Charging up a battery / jump-starting a vehicle: Think positive to positive, negative to negative, and you have it.
Tools Needed: Good jumper cables cost less than 50 dollars, but they require the presence of another vehicle. Even better, I keep a portable jump-starter in the shop and haul it in the trunk of our cars when on the road, as well as a basic toolbox. Keeping a battery minder on your car in the garage can be wise for vehicles not driven frequently or in cold weather. They trickle-charge batteries and can prevent the sorts of hard starts that reduce the life of a battery.
If your battery goes for good (usually a bad cell in it) you can save a great deal by swapping out your own battery. Lots of newer computer-laden cars (I hate 'em) are built to make you go to a dealer to pay big money for this. But you can work around it with a device called a "memory saver" that hooks up to the same OBD-II port mentioned earlier. Check to be sure your particular vehicle does not retain system memory; it varies by year and make. Again look for YouTube videos showing you how to avoid losing all your radio presets and other information that can occur with a battery swap.
Maintaining tire pressure: I forget to do this regularly, but a decent gauge is cheap. Most passenger vehicles need under 40 psi, save for high-performance tires. Your little bike pump will not suffice, but a cheap electric pump will do.
Changing air filters: Engine and cabin-air filters can be fiddly but need no special tools to swap. Again…videos for your vehicle. Our Toyota Tacoma took all of five minutes.
Adding coolant: I check the system on older vehicles and tractors frequently. The trick is to have the system cool enough to open a radiator cap on an old vehicle, or simply watching the fluid level in a newer one. I am stunned by how many folks I know who cannot find these service points on their car or truck.
Reading a paper map: Will your phone always work? I dislike phones generally, but in particular I hate using Google or Apple Maps to tell me where I need to go. Instead, I tend to look at the map and memorize the routes. I rely upon the apps on a first trip or two only or when planning (some apps can show roadwork or congestion in real time).
After a few trips, the route gets imprinted in my memory instead of making me helpless if my device does not function.
Better still, in case of a dead phone or loss of signal, I keep old-time paper maps in the vehicle. While you are at it, learn where North, South, East, and West are. I test my students about this; almost none know those directions, nor can they read a map. They are slaves to a device, when the device should serve them and help to mentor human skills.
What have I forgotten? Let me know.
