In South Africa, both Diesel and Petrol engine boats are available. Choosing the right boat depends on the usage and purpose. Now, if you are a first-time buyer of a boat in South Africa, you may face the dilemma. In this article, we study the pros and cons of the fuel types and the respective engines. So, let’s talk about Diesel vs Petrol, which fuel type is better for boats in South Africa.
Diesel vs Petrol – Make the Right Choice for your Boat in South Africa
In South Africa, petrol and diesel engine boats are readily available. You can refuel your boats easily at popular marinas in Cape Town or Durban and other popular places. We have a whole another article on how you can refuel your boat: check it out!
So, how should you choose the right fuel type for your boat, and by extension, the right engine type? Let’s start by understanding the advantages and disadvantages between the two.
Diesel and Petrol – What’s the Difference?
Petrol and Diesel are both commonly used fuels in various boats for various purposes. Many seasoned boaters would prefer diesel over petrol for the right reasons. However, petrol is generally preferred for small boats with outboard engines and short trips. That being said, let’s see a few factors in detail.
Also, we highly recommend you watch this video. It provides an excellent insight on this topic.
Fuel Cost: Diesel is generally a better choice
In South Africa, diesel is generally cheaper per litre than petrol, though prices fluctuate monthly depending on global oil trends and local tax structures.
But price per litre isn’t everything. Diesel engines are also more fuel-efficient, typically consuming 20–30% less fuel for the same load over the same distance. This makes a big difference on long offshore trips or during extended hours of trolling.
You will see the majority of larger boats using Diesel-based engines for the same reason.
Performance: Diesel provides better fuel efficiency and torque
On long-distance cruises, Diesel is generally preferred for its fuel-cost efficiency. However, diesel also performs better on heavier vessels as they produce plenty of torque for performance at an efficient cost.
Petrol on the other hand may not perform as well as a diesel engine. Furthermore, Power delivery on a petrol engine is not as strong as a diesel engine. However, it is more than sufficient for having a thrilling outdoor excursion in your nearest waterbodies.
Petrol is also more readily available for smaller vessels with outboard engines, so that is a plus for inland boaters who love to boat in less popular or remote areas in South Africa.
Engine Durability: Diesel Engines are more durable
At this point, this article feels like a pro-diesel article, but stick with us. Diesel engines are generally more durable and do not require servicing as often as a petrol engine. However, they are much more complicated to service and as they age, certain parts may not be available in the market anymore.
On the other hand, petrol engines may require servicing often, but they are simple to service. In fact, with experience, you can even service your outboard engine. For bigger engines however, please do visit a mechanic, unless you know what you are doing.
That being said, petrol engines may add up to the maintenance cost in the long term compared to diesel.
So, Which Fuel Type is Better: Diesel or Petrol?
Okay, sure. In Diesel vs Petrol fuel type, diesel surely wins. But there are a few scenarios where you would prefer using a petrol-based engine, too.
If you are someone who boats occasionally and prefers taking shorter excursions for leisure once in a while, you may benefit better from a petrol engine.
How about the maintenance? You may have to maintain the petrol engine more often, but it is also cheap and can be done easily.
A warning with Petrol though. Try to choose ethanol-free petrol for your vessel. Ethanol attracts moisture, which can ruin your engine in the long term, especially if your boat sits in the water all the time.
The Bottom Line
Heavy-duty, frequently used larger vessels should consider opting for the diesel engine. Recreational, once-in-a-while boating enjoyers may consider petrol engines for ease of maintenance and whatnot.
If you are looking for a Skipper’s License, Skipper Training SA has excellent courses for you. Feel free to check out our website or connect with us if you need any help.
