Have you ever thought about what you’re pumping into your vehicle’s tank? Filling up your car isn’t difficult, but picking the correct fuel can be confusing.
So, whether it’s unleaded 93 or 95 petrol or diesel, understanding the different fuel types can help you avoid expensive mistakes and ensure your car performs at its best.
Read along as we break down the different fuel types, their impact on your vehicle, and how to choose the right one for your car.
What is Unleaded 93 Petrol?
Unleaded 93 is one of the most common types of fuel in South Africa. The “93” refers to the octane rating, which measures how well the fuel can resist knocking or pinging during combustion.
This is when the air/fuel mixture has too much air and not enough fuel. It can sound like a metallic pinging or tapping noise and varies in loudness and frequency, especially when accelerating. Not ideal, right?
When to Use Unleaded 93 Petrol
Unleaded 93 is generally suitable for most petrol cars, especially older models or those with lower performance needs. Plus, it’s typically the more budget-friendly option.
However, checking your car’s manual is essential to see if your engine can handle 93 octane. If not, you might experience engine knocking, which can affect your car’s longevity and, ultimately, lead to engine failure.
The Implications of Using the Wrong Fuel
If your car needs a higher octane fuel, like 95, using 93 can reduce performance and make it less fuel efficient. It’s not as risky as using a lower octane than your car needs, but if you drive a high-performance vehicle, it could cause damage over time.
What is Unleaded 95 Petrol?
Unleaded 95 petrol is a higher-octane fuel designed for modern, performance-oriented engines. Its higher octane rating helps the fuel withstand higher compression in the engine, leading to better performance and fuel efficiency.
When to Use Unleaded 95 Petrol
Although 95 octane is slightly more expensive, the benefits often justify the cost. If your vehicle’s manufacturer recommends 95-octane petrol, it’s best to stick with it.
Modern cars with advanced engines require higher octane fuel to run efficiently. Using 95 octane can lead to smoother engine operation, better acceleration, and even a slight improvement in fuel economy.
The Risks of Using Lower Octane Fuel
Using 93 octane in a car designed for 95 can cause engine knocking and, over time, potentially lead to expensive repairs. While the immediate impact might not be dramatic, continuously using lower-octane fuel in a high-performance engine can result in long-term damage.
What is Diesel Fuel?
Diesel fuel is denser than petrol and contains more energy per litre, making it ideal for diesel engines. These engines work differently from petrol engines by compressing air first and then injecting fuel into the compressed air.
When to Use Diesel
Diesel is perfect for larger vehicles like trucks, buses, and SUVs and for drivers who cover long distances. Diesel engines are known for their fuel efficiency and longevity, making them popular in South Africa. If this sounds like you, perhaps consider purchasing a diesel vehicle.
The Dangers of Misfuelling
Accidentally filling a diesel engine with petrol can have serious consequences. Diesel engines rely on the lubrication properties of diesel fuel, and petrol doesn’t provide this. Misfuelling can significantly damage the fuel system and engine, resulting in costly repairs. Always double-check the fuel type before filling up.
Also, remember that many warranties as well as car insurance policies will not cover you if you filled up with the wrong fuel. This is seen as negligence by the driver, so always make sure you’re extra careful to avoid this costly error.
Tips for Avoiding Misfuelling
- Check your vehicle’s manual or the fuel flap for the recommended fuel type. Most modern cars come with a label in the fuel flap indicating the type of fuel to use; if it doesn’t, consider putting one there
- Consult a mechanic or your vehicle’s manufacturer if you need clarification
- Pay attention to petrol station labels and ask the attendant for the correct fuel type for your car
Driving Tips to Save Fuel
Fuel is expensive, whether it’s 93, 95, or diesel. Here are a few tips to help you get the most out of your tank.
- Keep your tyres properly inflated to improve fuel efficiency
- Avoid excessive revving of your engine, which wastes fuel
- Drive at steady speeds – rapid acceleration and braking can increase fuel consumption
Time To Fill Up, Confidently
Next time you’re at the fuel pump, remember the importance of selecting the right fuel and drive away knowing your car is getting exactly what it needs. Always over communicate with the petrol attendant and check that they choose the right fuel for your car. Remember, it’s your responsibility!
Visit Prime South Africa for more tips on keeping your vehicle in top shape or to explore car insurance options that suit your needs.
Stay safe, stay informed, and keep your car running smoothly with the correct fuel!
Disclaimer:
The article aims to provide South African motorists with information on different fuel types. However, it’s not a complete list and you should always do your own independent research. Always ensure you communicate well and often with your car insurance provider to avoid any disappointments.
If you want complete peace of mind, get a quote for affordable Comprehensive car insurance with Prime South Africa, with fixed premiums*, reducing excess*, and top-tier service. T&Cs apply. Always get professional financial advice from a certified financial advisor to ensure you select the appropriate financial services product.