Oils and Fluids
Oils and fluids are vital for the smooth, efficient, and long-lasting operation of any vehicle or machine. From engine oil and brake fluid to screen wash and gearbox lubricants, these products reduce wear, regulate temperature, and ensure optimal performance across every system. Since 1988, we’ve supported UK motorists, mechanics, and professionals with premium-grade oils and fluids from trusted brands for cars, vans, motorcycles, and workshops.
Why Oils and Fluids Matter
Whether you’re topping up before a long trip or doing a full service, the right fluid keeps your vehicle protected and running as it should. Using the correct oils and fluids helps:
Reduce engine wear and friction
Protect against corrosion, overheating, and breakdowns
Improve fuel efficiency and performance
Maintain braking, steering, and transmission responsiveness
Ensure compliance with manufacturer servicing requirements
Buying Guide: Choosing the Right Oils and Fluids
Types of Automotive Oils and Fluids
| Product Type | Primary Function |
|---|---|
| Engine Oil | Lubricates engine parts, reduces friction and heat |
| Coolant / Antifreeze | Regulates engine temperature and prevents freezing/overheating |
| Brake Fluid | Transfers force in the braking system for responsive stopping |
| Transmission Fluid | Lubricates gearboxes and ensures smooth shifting |
| Power Steering Fluid | Maintains steering performance and reduces pump wear |
| Screen Wash | Cleans windscreen, improves visibility, and prevents smearing |
| Differential & Gear Oils | Protects drivetrain components under load |
| AdBlue / DEF | Reduces diesel emissions in SCR systems |
| Greases & Lubricants | Targeted protection for moving parts like hinges, bearings, and chassis |
| Motorcycle Oils & Fluids | Designed for high-revving two-wheeled engines and specific systems |
Subcategory Breakdown
Engine Oils
Available in mineral, semi-synthetic, and fully synthetic grades (e.g. 5W-30, 10W-40). Choose based on manufacturer specs, driving conditions, and engine type (petrol or diesel).
Brake and Clutch Fluids
DOT 3, DOT 4 and DOT 5.1 options to match your vehicle’s requirements. Higher DOT = higher boiling point.
Transmission and Gear Oils
Manual and automatic transmission fluids for cars, vans, and 4x4s. Look for OEM approval codes when buying.
Coolant and Antifreeze
Choose OAT (Organic Acid Technology) or HOAT (Hybrid) coolants depending on your vehicle. Available ready-mixed or concentrate.
Workshop Fluids
Includes penetrating oils, greases, degreasers, and multi-use lubricants for garages and DIY maintenance.
AdBlue and Emission Fluids
Used in modern diesel vehicles with SCR (Selective Catalytic Reduction) systems to cut NOx emissions.
Expert Maintenance Tips
Check engine oil levels weekly and before long journeys
Replace fluids according to your manufacturer’s service schedule
Always use the correct grade and specification of oil or fluid
For accurate results, top up or change fluids when the engine is cold (unless stated otherwise)
Store fluids in a cool, dry place and seal tightly to avoid contamination
Common Mistakes to Avoid
❌ Mixing incompatible fluids (e.g. coolant types or oil grades)
❌ Using the wrong brake fluid — can damage seals and reduce braking power
❌ Topping up without checking for leaks
❌ Letting oil levels drop too low — leading to engine damage
❌ Using old or contaminated fluid — always check expiry or storage conditions
Bestselling Oils and Fluids
Castrol EDGE 5W-30 Fully Synthetic Engine Oil – Suitable for modern petrol and diesel engines
Comma Xstream G30 OAT Antifreeze – Long-life coolant for a wide range of vehicles
Mobil Super 3000 5W-40 – Trusted semi-synthetic oil with high wear protection
Carlube DOT 4 Brake Fluid – Safe for ABS systems and high-performance braking
Mannol ATF Multivehicle Transmission Fluid – Compatible with multiple automatic gearboxes
Liqui Moly Cera Tec Oil Additive – Reduces engine wear and friction
Holts Screen Wash Concentrate – Winter-ready formula with anti-freeze properties
Millers Oils CRX 75W90 NT+ – Premium synthetic gear oil for motorsport and performance use
Bluecol AdBlue 10L with Spout – Reduces diesel emissions and protects SCR systems
WD-40 Specialist White Lithium Grease – Long-lasting lubrication for metal-on-metal applications
Oils and Fluids – FAQs
1. How often should I change my engine oil?
Follow your vehicle’s handbook — typically every 5,000 to 10,000 miles or annually, depending on usage and oil type.
2. What’s the difference between 5W-30 and 10W-40 oil?
The numbers indicate oil viscosity. 5W-30 flows better at cold temperatures, while 10W-40 is thicker, offering more protection at high temperatures.
3. Can I mix different types of coolant?
No — mixing OAT and non-OAT coolants can cause chemical reactions, sludge build-up, or system damage.
4. How do I know which brake fluid to use?
Check your vehicle manual. Most modern cars use DOT 4, but some performance models or older vehicles may differ.
5. What happens if I use the wrong engine oil?
Using incorrect oil can lead to increased wear, poor fuel economy, and potential engine damage.
6. Is screen wash the same as water with detergent?
No — screen wash includes anti-freeze and cleaning agents that prevent freezing and provide streak-free cleaning.
7. Do I need AdBlue in my diesel vehicle?
Yes, if your car has a Selective Catalytic Reduction (SCR) system. Running out of AdBlue can stop the engine from restarting.
8. Can I top up fluids myself or do I need a mechanic?
Most fluids (oil, coolant, screen wash) can be topped up easily at home, but changing brake or transmission fluid may require a professional.
9. What colour is the correct coolant?
Colour is not always a reliable indicator — always follow your vehicle’s specific coolant recommendation.
10. How should I dispose of old oils and fluids?
Take them to a local recycling centre. Never pour them down drains or into the environment.
Final Thoughts
Oils and fluids are the lifeblood of your vehicle, protecting its systems, enhancing performance, and ensuring safety. Whether you’re servicing a family car, tuning a high-performance engine, or simply topping up the screen wash, choosing the right fluid makes all the difference. With over 35 years of experience, we stock only top-quality, vehicle-approved oils and fluids to keep you moving with confidence.
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