How Often Should You Really Change Your Oil?

"Every 3,000 miles" is advice from a different era. Modern engines and synthetic oils have changed the math — but waiting too long is still one of the most expensive mistakes a driver can make. Here's a straight answer for Dartmouth drivers.

The general rule today

Most modern vehicles running synthetic oil are fine with an oil change every 8,000 to 12,000 km, or once a year, whichever comes first. Older vehicles or those using conventional oil may need it closer to every 5,000 km. Your owner's manual has the exact number for your car — and if you're not sure, we're happy to check.

Why the interval matters

Oil does more than lubricate. It carries heat away from the engine, keeps internal parts clean, and protects against wear. As it ages it breaks down and picks up debris. Run it too long and you risk sludge buildup, poor fuel economy, and in the worst cases, serious engine damage that costs far more than a routine service.

Signs you're overdue

• The oil-life or check-engine light is on

• Dark, gritty oil on the dipstick

• A ticking or knocking sound from the engine

• It's been more than a year since your last change

Short trips count against you

If most of your driving is short hops around Dartmouth, your engine rarely gets fully warm, which lets moisture and fuel dilute the oil faster. Stop-and-go city driving is actually harder on oil than steady highway miles, so don't stretch the interval just because your mileage is low.

Due for a change? Book online or call (902) 999-7277. Royalz Tire & Lube — 923 Main Street, Dartmouth, NS.