When it comes to maintaining your vehicle, one of the most common questions Canadian drivers ask is: Should I use synthetic or regular engine oil? With modern cars, fluctuating weather conditions across Canada, and rising awareness of engine longevity, the demand for synthetic oils has grown dramatically. In this guide, we’ll break down the difference between synthetic and conventional oil, explain the benefits, and help you decide which type is right for your vehicle.
Synthetic engine oil is a man-made lubricant created from chemical compounds designed to provide superior performance compared to conventional (mineral-based) oils. Unlike regular oil, which comes from refined crude petroleum, synthetic oils are engineered with controlled molecular structures.
Key properties of synthetic oil:
This engineered consistency is what gives synthetic oils their superior longevity and protection.
Let’s break down the most common comparison:
| Feature | Synthetic Oil | Conventional Oil |
|---|---|---|
| Base Material | Chemically engineered | Refined crude petroleum |
| Viscosity Stability | Excellent (less affected by temperature extremes) | Prone to thickening in cold & thinning in heat |
| Engine Protection | Superior — protects against deposits, sludge, and wear | Provides basic protection |
| Lifespan | Lasts 2x to 5x longer than conventional | Shorter life, requires more frequent changes |
| Cost | Higher upfront ($8–$12/L in Canada) | Cheaper ($4–$7/L in Canada) |
| Change Interval | 8,000–16,000 km (5,000–10,000 miles) depending on vehicle | 5,000–8,000 km (3,000–5,000 miles) |
👉 Bottom line: Synthetic oil may cost more at the counter, but it saves you money long term by requiring fewer oil changes and reducing engine wear.
Canada’s climate makes oil choice more critical than almost anywhere else. From frigid winters in Alberta to hot summers in Ontario, your oil needs to perform across extreme temperature swings.
Canadian drivers will most often see these viscosity grades:
Tip: Always check your owner’s manual before switching grades.
A frequent search term in Canada is synthetic engine oil change interval. While conventional oil often requires changes every 5,000–8,000 km, synthetic oil typically extends this to 8,000–16,000 km, depending on driving conditions.
General Guidelines in Canada:
In most cases, yes — especially for modern vehicles. Here’s why:
However, if you’re driving an older vehicle (pre-2000) that’s never used synthetic oil, switching may not always be recommended without consulting a mechanic.
| Oil Type | Average Price (per 4.73L jug) | Change Interval | Annual Cost (average driver ~20,000 km/year) |
|---|---|---|---|
| Conventional | $25–$35 | 5,000–7,500 km | ~$120–$160 |
| Semi-Synthetic | $35–$45 | 7,500–10,000 km | ~$90–$120 |
| Full Synthetic | $55–$80 | 10,000–15,000 km | ~$75–$110 |
👉 Despite higher upfront cost, full synthetic often ends up cheaper annually because you need fewer oil changes.
1. What is the difference between synthetic and normal engine oil?
Synthetic is engineered with uniform molecules and additives, while normal oil is refined crude with more impurities.
2. How often should I change synthetic oil in Canada?
Typically every 12,000–15,000 km, but check your manual. Extreme cold or towing may shorten intervals.
3. Is synthetic oil better for older cars?
If your vehicle is high-mileage and has never used synthetic, consult a mechanic first. Otherwise, high-mileage synthetic oils can help.
4. What’s the best synthetic engine oil in Canada?
Mobil 1, Castrol EDGE, and Pennzoil Platinum are top choices. OEM oils like Honda 0W-20 are best for brand-specific cars.
5. Can I mix synthetic and conventional oil?
Yes, but it dilutes the benefits of synthetic. Best to stick with one type.
6. Does synthetic oil improve fuel economy?
Yes, slightly. Reduced friction improves efficiency, especially in stop-and-go driving.
7. What happens if I don’t change oil regularly?
Sludge buildup, reduced lubrication, and potential engine failure.
8. Is full synthetic worth the cost in Canada?
Yes, especially considering fewer oil changes, better protection, and performance in cold weather.
9. Which oil is recommended for Honda vehicles in Canada?
Honda 0W-20 full synthetic is most common for modern models.
10. Can synthetic oil extend engine life?
Yes, by reducing wear, maintaining cleanliness, and performing under all Canadian weather extremes.
Synthetic engine oil is quickly becoming the standard in Canada — not just for performance cars but for everyday commuters. While it costs more upfront, its extended life, superior protection, and adaptability to Canada’s climate make it the smarter choice for most drivers.
If you’re still debating between synthetic vs. regular engine oil, remember this: synthetic oil is an investment in your car’s long-term health and your wallet.
