• 0W-20 / 5W-30 Full Synthetic: Best for 660cc Kei cars (Suzuki Alto, Mira) and modern sedans (Corolla, Civic, Yaris, City).
• 10W-40 Semi-Synthetic: Ideal for daily drivers with over 100,000 km or mild oil consumption.
• 20W-50 Mineral: Suitable for older carbureted or commercial workhorses operating under high ambient heat.
Understanding SAE Viscosity Numbers (e.g. 5W-30)
The number preceding the "W" represents Winter viscosity (fluidity during cold start-up). The lower the number (0W or 5W), the quicker oil pumps through tight clearances upon cold ignition. The second number (30 or 40) denotes film thickness at normal engine operating temperature (100°C).
Synthetic vs Mineral Oil: What’s the Real Difference?
Fully synthetic oils (like Total Quartz 9000 5W-30) are chemically engineered from uniform synthesized molecules. They resist thermal breakdown in Pakistan’s 45°C summer heat, resist sludge formation, and maintain fuel efficiency for 5,000 to 8,000 km. Mineral oils (like Total Quartz 3000 20W-50) are refined crude petroleum; they are cost-effective but break down faster and should be drained every 3,000 to 4,000 km.
Recommended Viscosity by Vehicle in Pakistan
- Suzuki Alto 660cc, Wagon R, Cultus: 0W-20 or 5W-30 (Total Quartz 9000 Synthetic)
- Toyota Corolla (1.3 / 1.6 / 1.8), Yaris, Vitz: 5W-30 or 10W-40 (Total Quartz 7000 / 9000)
- Honda Civic (Turbo / 1.8), City: 0W-20 or 5W-30 Full Synthetic
- Toyota Hilux Revo / Fortuner 1GD / 2GD Diesel: 5W-30 Low SAPS Full Synthetic
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