Maintenance and fuel
Oil, fluids, tires, wipers and fuel: what to check and when.
- Engine oil, checked and changedReading the dipstick properly, where the 3,000-mile rule came from, what the makers publish now, and changing the oil…
- The seven fluids, checkedCoolant, brake, transmission, power-steering, washer fluid, engine oil and the one people forget: how to check each…
- Tires: tread, pressure, ageThe 2/32-inch rule and the penny check, why the pressure number is on the door and not the tire, and when age alone…
- How to choose tires for your carHow to read the door placard, load index, speed rating and UTQG grades, which tire type fits your climate and car…
- Tire size calculatorCompare two sizes: how tall each stands, revolutions per mile, and what the speedometer reads once they are on.
- Wipers: the rules and the marketingThe exact wiped percentages and cycle speeds in FMVSS 104, which states can fail a car for a torn blade, and where…
- Gas mileage: measure it, improve itWhat the window-sticker MPG means, how to measure your own with two fill-ups, and the driving effects the Department…
- How to find cheap gasWhy stations a mile apart charge different prices, which apps and loyalty programs cut the bill, the state gas tax…