Should Mazda use 0w20 or 5w30 engine oil?
2 Answers
Mazda CX4's specialized engine oil is 0W20. As long as the oil grade is consistent, any brand of engine oil can be used. Here is extended information about oil selection: 1. If you prioritize long-lasting oil performance, you can use Mobil lubricants. 2. If you need engine oil with strong cleaning capabilities, you can use Shell lubricants. 3. For lubricants with strong oil film toughness, Castrol is recommended. Here is extended information about Mazda: 1. The Mazda CX4 is a mass-produced version derived from the 'KOERU' concept car, positioned as a compact coupe SUV. 2. It features Mazda's KODO design language, aligning with the lifestyle of modern young people who pursue technology but value quality and practicality.
I remember struggling with this when I first started driving my Mazda3. The factory manual clearly specifies using 0W-20 oil, especially for Skyactiv engines. This viscosity offers good fluidity, strong cold-start protection, and slightly better fuel economy. After years of using 0W-20 myself, the engine runs quietly with stable fuel consumption. However, during a pre-road-trip maintenance, the mechanic suggested that 5W-30 provides better high-temperature protection for older vehicles or those frequently driven at high RPMs. But be cautious about mixing different viscosities as their additive packages may conflict. Later, I found in the service manual that Mazda's ECU even adjusts fuel injection based on oil viscosity - using wrong oil might trigger warning lights. Bottom line: follow the manual strictly for new cars, and reconsider after 100,000km if needed.
