Tire Age Limit and DOT Date Code: When Old Tires Become Unsafe
Tires expire even with full tread. Learn to read the 4-digit DOT date code on your sidewall and when to replace tires by age.
Service Advisor & Tech Writer
Jamie Kowalski
11
articles
Verified author
About
Started as a lube tech, moved into service advising after three years, and built a career around the most underrated skill in automotive: translating what the technician found into something the customer can actually act on. Eight years behind the service counter at high-volume dealerships, handling everything from routine maintenance to complex warranty disputes. ASE C1 Service Consultant certified. Cars weren't a hobby growing up — his father spent over two decades on the GM assembly line in Flint. The perspective here is the customer's side of the counter: what's worth fixing now, what can wait, and what the estimate actually means.
Campus Parking Lot Safety Checklist
A practical campus parking lot safety checklist for students, staff, and visitors: phones, pedestrians, theft prevention, bad weather, and parking lot bumps.
Student Driver Campus Car Safety Checklist
A practical campus car safety checklist for student drivers: parking lots, phone setup, warning lights, emergency contacts, bad weather, and when not to drive.
Hot Car Safety: Children, Pets, and Parked Vehicles
A practical hot car safety checklist for children, pets, and parked vehicles: prevention habits, warning signs, and what to do in an emergency.
Teen Driver Car Safety Checklist
A practical teen driver safety checklist for parents and new drivers: car checks, phone rules, warning lights, emergency items, and when not to drive.
Hot Weather Car Safety Checklist
What to inspect on your car before driving in hot weather: coolant, tires, battery, and AC. Includes when not to drive and what to keep in the car for summer.
Winter Car Emergency Kit Checklist
A practical checklist of what to keep in your car for winter emergencies: jumper cables, traction aids, warmth, and roadside tools.
Window Tint VLT Specifications
VLT is the percentage of light that passes through tinted glass. Front side window minimums range from 24% to 70% depending on state. Combined film plus factory glass must meet the limit.
Cars That Age Well Past 100,000 Miles And Why
Some cars hit 250,000 miles without major work. Others fall apart at 100k. The gap comes down to design choices and a couple of maintenance habits.
Engine oil specification
0W-20, 5W-30, or 10W-40 isn’t a suggestion, it’s an engineering spec. Wrong viscosity in a modern engine raises wear and drops fuel economy by 1-2%.