5W20 vs 0W20 Oil for Subaru Impreza: Is There a Real Difference?

QuestionsCategory: Ask An Expert5W20 vs 0W20 Oil for Subaru Impreza: Is There a Real Difference?
Aiden William Moore asked 6 months ago
Hello, I recently took my 2013 Subaru Impreza (77,000 miles) to the garage for an oil change. According to the manual and oil cap, OW20 is recommended, but the invoice from the garage listed 5W20. The mechanic mentioned there's no significant difference between the two. I've done some research and found that OW20 might be better in cold winters. I live in New England, so should I be concerned about the different oil used in my car?
1 Answers
Zack Norman Staff answered 6 months ago
Hello there, Aiden! The difference between 5W20 and 0W20 oil is mainly in their viscosity at cold temperatures. 0W20 flows better in cold weather compared to 5W20, making it a slightly better choice for cold climates like New England. This is crucial for ensuring adequate oil pressure and lubrication during cold starts, especially in modern engines with tighter tolerances and advanced features like variable valve timing. However, for your 2013 Subaru Impreza, using 5W20 instead of 0W20 is unlikely to cause immediate issues. The 5W20 will still provide sufficient protection, though it may not be as optimal in extremely cold conditions. In the future, it's best to stick to the manufacturer's recommendation of 0W20, particularly for oil changes. This ensures the best performance and longevity of your engine. For now, there's no urgent need to change the oil again, but consider using 0W20 in your next service, especially with winter approaching. Also, it might be worth discussing this with your mechanic or finding a service center that strictly follows manufacturer recommendations. Hope this helps! Zack - Motor Verso Mechanics Team