When to change transfer case fluid depends on your vehicle, so start with your owner’s manual. Shop advice runs from every 25,000 km to every 100,000 km or more.
AWD and 4WD vehicles have a transfer case. It sends power from the transmission to the front and rear axles. Its fluid keeps the gears slick and cool. But the additives wear out over time.
Here’s what three Canadian shops say:
- A Vancouver shop: “Every 48,000KM or 30 months (whichever comes first)”
- A Calgary shop: most makers say every 50,000 to 100,000 kilometres
- An Alberta shop: from 25,000 km to 100,000 km or more, by vehicle
Plan on fresh fluid sooner if you tow heavy loads or drive off-road. Snow and mud are hard on it too.
Signs it’s overdue include grinding from under the car and trouble shifting into 4WD. Watch for a leak near the transfer case or a 4WD warning light too.
If you notice any of these, have our mechanics check it soon. For prices, read our guide to differential fluid change cost in Vancouver.
Service desk The full guide
Differential fluid change cost in Vancouver: the published prices, what a quote covers and how to compare quotes.