Car Care Advice

Flat illustration of a car on low ramps in a repair shop, with a drain pan of dark brown fluid beneath it, a kneeling technician holding a bottle of fresh red fluid, and a wheeled fluid exchange machine linked to the car by two hoses. Short labels read drain and fill, fluid exchange, and ATF.

Transmission Flush vs Fluid Change: What Four Carmakers Tell Their Own Dealers

A flush and a fluid change are not the same service. GM and Honda warn against outside machines, while Mazda and Kia limit when flushing makes sense.

October 16, 2026 · 13 min read

Flat vector illustration looking straight down at a workbench. Five small consumable items sit in a row, each in its own shallow tray: a roll of shop towels, an upright spray can, a work glove, a tub of grease and a strip of clips. A hand enters from the left holding a magnifier over the row, and a second hand at the right rests a blank folded paper slip on the bench. Thin dotted lines run from each item to a single blank tag at the lower right, beside an empty price-tag outline.

What Is the Shop Supplies Fee on Your Repair Bill? What It Covers, and the States That Limit It

That vague line on your repair bill is usually a percentage of labor. California bans it, Florida makes the estimate explain it. Here's how to push back.

October 13, 2026 · 14 min read

Flat illustration of a tire shop. A large split season dial labeled STUDS ON and STUDS OFF stands behind two tires, one with studs scattered through the tread and one with plain winter grooves, while a technician tilts the near tire toward the viewer beside a CHECK YOUR STATE label.

Studded Tire Laws by State: The Dates You Can Run Them, and the Day the Ticket Starts

We read twelve states' studded tire statutes ourselves: when you can put studs on, the day you have to be off, and what being late costs.

October 9, 2026 · 16 min read

Flat illustration of a driver at a service counter holding up a technician's credential card and studying it through a magnifying glass, while a technician gestures toward a certificate panel with a seal in the corner. Dotted lines run from the round seal decal on the shop window to the technician rather than to the building, and three small chips showing a brake disc, an air conditioning fan and a battery float between the two figures.

What Does ASE Certified Actually Mean? A Driver's Guide to the Blue Seal

ASE certifies technicians, not shops. See what the blue seal really proves, which certification matches your repair, and how to check it before you book.

October 6, 2026 · 14 min read

Flat vector illustration of a woman crouching beside a car wheel and holding a blank coin against the tread while a service advisor with a clipboard explains, with labels reading TREAD CHECK, QUARTER TEST and WEAR BARS and a rain cloud above.

How to Tell If You Really Need New Tires: The Two-Minute Check, Your State's Legal Floor, and the Number That Matters More

Check your tires in two minutes with a quarter, see the tread depth your state actually requires, and learn why 2/32 inch is a common legal floor, not a safety line.

October 2, 2026 · 17 min read

Flat vector illustration of a flatbed tow truck carrying a small hatchback, with a woman holding a long paper invoice whose total bar stops just beneath a wide horizontal cap bar, a fenced tow yard corner on the left, and three small cards labeled Hookup fee, Per mile and Storage / day.

How Much Does a Tow Cost? The Two Very Different Bills, and What Your State Caps Them At

A tow you call runs about $4 a mile. A tow you didn't call is capped by law, $132 in Massachusetts and $272 in Texas, and storage is what wrecks the bill.

September 29, 2026 · 18 min read

Flat vector illustration of a driver holding her policy document beside a sedan with a chipped windshield, a camera pod on the glass, and a glass technician with a suction lifter; a shield labeled GLASS CLAIM, a notched coin labeled DEDUCTIBLE and a crosshair labeled CALIBRATION float above, linked to a US map card marked with three dots.

Does Insurance Cover Windshield Replacement? What Your State Actually Waives, and the Calibration Bill That Changes the Math

Florida, South Carolina and Kentucky have mandatory glass-deductible rules, while optional full-glass coverage also exists elsewhere. Compare the differences.

September 25, 2026 · 14 min read

Flat vector illustration of a car owner at an independent shop counter holding an open service invoice while a technician hands back a set of keys. Between them a large document card headed WARRANTY carries a green check seal on a ribbon reading STILL VALID, with three receipt cards joined to it by a dotted line, an open padlock, an orange folder labeled KEEP THE RECEIPT, an oil drop and an oil filter, a car raised on a two-post lift with its hood open, and a sign on the counter reading ANY SHOP.

Does Going to a Different Mechanic Void Your Warranty? No — and Here's Exactly Where That Protection Stops

No, federal law bars a dealer from voiding your warranty because an independent shop serviced your car. See the 4 exceptions and the records that protect you.

September 22, 2026 · 16 min read

Flat vector illustration of a woman at a repair shop counter holding a printed invoice with a highlighted line reading "24 months," while a technician behind the counter points to a wall board of three shield badges of increasing size. A stopwatch, a blank odometer dial, a magnifying glass over the fine print, a small US map with three pins and a phone handset icon surround the scene.

Do Mechanics Have to Warranty Their Work? What's Standard, What's Enforceable, and What to Do When the Repair Fails Again

No law makes a shop guarantee repairs, but 12/12 is the industry floor and NAPA, TechNet and AAA shops go to 24 or 36 months. See what's covered.

September 18, 2026 · 16 min read