Browse most popular articles in Oils and Fluids

• Which antifreeze is right for me? Antifreeze is going to go right into the heart of your car's engine, so choosing the right one is very important, especially since it’s now vehicle specific. Antifreeze mixes with water to prevent it from freezing; it also raises the boiling point to avoid overheating and reduce corrosion in your…
• Engine Oil - What you need to know Engine oil, also known as motor oil, is a lubricant used in internal combustion engines. Its primary function is to reduce friction between moving parts, but it also plays several other critical roles in the engine. Here's an overview of what engine oil is and what it does. Engine Oil Buyers Guide
• How to check your engine oil Regularly checking your engine oil level is one of the most crucial maintenance tasks for your car. The engine oil ensures the moving parts of the engine are lubricated. If the level gets too low the engine could overheat and the moving parts might start to wear out, this will lead to the engine eventually…
• Semi-synthetic and fully synthetic oil When choosing between semi-synthetic and fully synthetic oil for your vehicle, understanding the differences can help you make an informed decision. We've put together a handy guide to explain the differences.  Semi Synthetic and Fully Synthetic Oils
• Why is my car overheating? An overheated car can be a stressful experience and you may be unsure of what to do should the situation arise. It is essential to act quickly if your car is overheating to avoid further damage to your car engine and keep yourself safe. Keep reading to discover why a car overheats and what to do if…
• What does antifreeze do? Antifreeze is going to go right into the heart of your car's engine, so choosing the right antifreeze is very important. Getting the right type for your car is even more vital now antifreeze has been made vehicle specific.  Antifreeze mixes with water to prevent water from freezing. It also raises…
• The importance of screen wash Topping up your screen wash may be one of the simplest tasks that come to mind with car maintenance, but it is one of utmost importance. This fluid helps keep the windscreen completely clear and is crucial to maintaining perfect vision. For every journey. Our range of Halford's screen washes is recognised…
• What is E10 fuel and how will it affect my vehicle? E10 fuel became the main grade petrol in Great Britain and Northern Ireland in 2021 and 2022 respectively, replacing E5 as the UK’s standard petrol grade. But what exactly is E10 fuel, and how will it affect you and your vehicle? What is E10 fuel? E10 petrol is an unleaded fuel that contains up to…
• What is AdBlue? AdBlue is a diesel exhaust fluid used in vehicles to help reduce the amount of harmful gases being released. If you have questions regarding AdBlue, such as how long its shelf life is, or whether you can dilute it before adding to your vehicle, check out our Motoring FAQs. Motoring FAQs  
• The importance of brake fluid Brake fluid is the liquid chemical solution used in the hydraulic braking systems of modern cars. It is designed to amplify your foot's force on your brake pedal and turns it into pressure on your car's brakes. If you think it's time to get your brake fluid changed but you are unsure if you are in need…