--- title: "Check tire pressure and oil with your teen" status: "Idea, not yet tested" published: "2026-10-15" updated: "2026-10-15" author: "Dad Field Manual editors (drafted with AI help)" time: "45 min" cost: "About $10" ages: "14 and up" where: "A flat driveway or parking spot, with a car that hasn't been driven for at least three hours." topics: ["chores","teens","outdoors"] print: "https://dadfieldmanual.com/print?p=car-care-basics" url: "https://dadfieldmanual.com/plans/car-care-basics/" --- # Check tire pressure and oil with your teen > Forty-five minutes in the driveway with a tire gauge and the owner's manual. Your teen walks away knowing the three checks that keep a car safe between shop visits, and owning them every month. **Tested on:** not yet. When a dad tries this, his name, the date, the place, and the kids' ages will be added here. ## What you need - Tire pressure gauge (have / $10) - The car's owner's manual (or the maker's website version) (have) - A penny (have) - Paper towels or a clean rag (have) - Paper and pen to write the numbers (have) - A flashlight (have) ## Before you start - **Engine off, keys out, car cooled down.** Engine parts and oil get hot enough to burn. The tire check needs a cold car anyway. - **Flat ground, parking brake on.** No jacks and no crawling under the car. Nothing in this plan needs either. - **Hood on its prop rod or struts** before anyone leans in. Tie back long hair and keep sleeves and hands clear of belts and the fan. - **A bad tire is a stop sign.** If the tread fails the penny test, or you see cuts, cracks or bulges, NHTSA says stop using the tire. ## Steps 1. **Find the right number** (Together) Open the driver's door and find the Tire and Loading Information label on the door edge or the post. That's the recommended cold pressure, in psi. Say, "The number on the tire itself isn't ours. The car's label is." NHTSA says to use what the vehicle maker lists. 2. **Check all four tires cold** (Kid) Cold means the car hasn't been driven for at least three hours. Unscrew the valve cap, press the gauge on straight and quick, and read it. Write each tire's number on the paper. Check the spare too, if the car has one. 3. **Let air out or add it** (Kid) Too high: press the valve pin gently with the gauge's edge, then recheck. Too low: write how many psi are missing and add that much at an air pump, then recheck. Say, "Low tires don't always look low. That's why we use the gauge." 4. **Penny test the tread** (Kid) Put a penny in the tread with Lincoln's head upside down and facing you. If you can see the top of his head, it's time for new tires. NHTSA says tires aren't safe below 2/32 of an inch of tread. Try three spots on each tire. 5. **Find the dipstick in the manual** (Dad shows, Kid copies) Open the owner's manual to the engine section and follow its directions for checking oil, including when to check it. Find the dipstick handle under the hood. If you can't find one, the manual will show how your car reports oil level. 6. **Read the oil** (Kid) Pull the dipstick out, wipe it clean, push it all the way back in, then pull it again. The oil should sit between the two marks. If it's below the low mark, add a little of the oil type the manual names, wait a minute, and check again. Don't overfill. 7. **Make it a monthly job** (Together) NHTSA says to check tire pressure, spare included, at least once a month, and tread at the same time. Set a monthly reminder in their phone. Say, "This is your car job now. Text me the four numbers." ## If it stalls - If the gauge reads zero or the valve hisses, press it on straighter and faster. A hiss means air is leaking around the gauge. - If the front and rear numbers on the label are different, that's what the maker wants. Fill each tire to its own number. - If the tire-pressure warning light comes on, NHTSA says at least one tire is already significantly underinflated. Check all four that day. - If they're bored by your explaining, hand them the paper and the gauge and only answer questions. ## Variations - **Learner's permit:** Do it before a practice drive, so checking the car becomes part of driving it. - **Already driving:** They do all three checks alone and text you the numbers. You check their work the first two months, then stop. - **Younger sibling along:** The younger one reads the numbers out loud and holds the flashlight. The teen teaches. - **Cold:** Tire pressure can read low on cold mornings, and NHTSA notes the warning light may come on briefly. That's a reason to check, not skip. - **Rain:** Wait for a dry hour or do it under a carport. Wet hands slip on the gauge. - **Hot:** Do it in the morning, in the shade, before anyone has driven the car. ## Sources - **Tire pressure and tread.** NHTSA says to check all tires, including the spare, at least monthly when cold (not driven for at least three hours); the correct pressure is on the Tire and Loading Information label on the driver's door edge or post and in the owner's manual, not the number on the tire. It says tires are unsafe at 2/32 inch of tread, describes the upside-down Lincoln penny test, says a lit TPMS light means at least one tire is significantly underinflated, and says to stop using tires with cuts, cracks or bulges. (checked 2026-10-15)