In the local market, the most common type of automotive engine oil is fully synthetic oil with a viscosity grade of 5W-30, such as Castrol Edge 5W-30 SP and Petronas Syntium 5000 5W-30. This type of oil features a high viscosity index (approximately 172), outstanding anti-wear properties (with phosphorus and zinc contents reaching 916 ppm and 1101 ppm respectively), and excellent high-temperature stability (flash point of 236°C). It is suitable for petrol engines, diesel engines, and hybrid vehicles, while complying with stringent certification standards including BMW LL-01 and Volkswagen VW502/505. Notably, 5W-30 oil maintains stable oil film thickness under high-temperature conditions, and its pour point of -41°C also renders it appropriate for tropical climates. For instance, Syntium 5000 5W-30 is priced at around RM259 per 4L, offering a competitive advantage over equivalent Castrol Edge products (approximately RM37.52 per litre). Vehicle owners should select genuine oils with API SP or ACEA A3B4 certifications based on their vehicle manual's specified requirements and operating conditions.
