Full synthetic oil is cultured in laboratories using chemicals and additives to suite modern high-performance engines.

Engine oils range from the scientifically engineered synthetic types to the traditional crude oil based mineral products. Full synthetic oil is cultured in laboratories using chemicals and additives that make them versatile for modern high-performance engines.

Semi synthetic oils are made from chemical additives and crude oil. Mineral oils are extracts of crude oil and the benchmark feature of all of the products is the viscosity grade. Viscosity is the ability of the oil to flow in cold and hot conditions.

Average prices depend on the type of oil products and their viscosity strength. The information is visibly printed on oil container labels, something similar to 0W-40. The number to the left of “W” indicates the viscosity of the oil at cold, W-for winter-like conditions. The one on the right is the products' viscosity in hot conditions measured at 100°c.

The price of some widely used 5W-30 multigrade oil is from between $57.99 to $71.99 for a 5 litre pack. In the semi synthetic category, the 10W-30 5 litre package is priced around $44.99 to $54.99. If you are looking to give your car a service, consider changing the fuel filter along with the oil.

The best quality brands in the market include Penrite, Nulon, Valvoline, Mobil and Castrol.

Where can I buy cheap engine oil?

Whether the engine is petrol or diesel-powered will impact the type of oil. A full range of each oil type for different weather conditions and vehicle uses are readily available in your owner's manual.

How much is 5W-30 synthetic oil?

The 5W-30 synthetic oil is a multigrade product, meaning, it is ideal for an engine working in temperatures between -30°c to 30°c. At low temperatures, it has a 5 viscosity grade which means the oil assists the engine to start and perform normally. It also attains 30 grade viscosity characteristics required in hot engine and weather conditions. Use it in light duty petrol or diesel powered engines. This is because it's thinner at cold temperatures compared to 10W-30 or 10W-40 and thinner at higher temperatures compared to 5W-40. It is good for engines that start at low temperatures and also versatile for long drives that generate excessive heat. In practice, it suits many vehicle models and brands. The price range for 5-litre container starting is from between $57.99 to around $71.99.

Which is the right engine oil for me?

Find the best oil grade and standard in your owners manual. If your vehicle is under warranty, seek approval from your dealer if you encounter a type that you are unsure about. Otherwise, the use of unapproved products may void your warranty.

Know your engine oil type

Petrol, diesel or LPG powered engines function with products specific to the type and technology in the engine. This is more so with heavy duty diesel engine oils with additives to enable the products to offer superior engine protection. These additives affect the complementary components like the oil filter, which is separate from the fuel filter.

How and where do I use the car?

Is the car used in harsh driving conditions like short daily rides, town drives or start and stop conditions? Also, consider loading needs. Tow cars and heavy load trailers require thicker oil products like 15W-40 or 15W-50 to protect the engine.