Royal Purple XPR 10W-40 is a premium full-synthetic Extreme Performance Racing oil engineered for competitive motorsport and high-performance street builds across the UK. Blended with Royal Purple’s advanced Synerlec® additive technology, XPR delivers outstanding engine protection, reduced friction and improved efficiency, helping to increase horsepower and torque output.

Ideal for turbocharged, supercharged and heavily modified engines, Royal Purple XPR 10W-40 provides reliable lubrication and thermal stability, even in extreme racing environments. Whether you’re running track days, drifting, drag racing or fast-road performance builds, XPR ensures superior protection and power consistency from cold start to peak operating temperature.

Optimised for engines that require a thicker viscosity under load, this oil offers enhanced film strength to prevent metal-to-metal contact, supporting engine longevity and performance reliability.

🔎 Why Choose Royal Purple XPR 10W-40 in the UK?

• Designed for motorsport, track, drift, drag and performance road use

• Excellent protection for high-temperature and high-boost applications

• Proven to reduce friction and unlock more usable power

• Helps protect bearings, pistons, camshafts and turbo components

• Suitable for petrol engines, including E85 and race fuel blends

✅ Key Features & Benefits

• Motorsport-Ready Formulation – Trusted by race teams for durability and power.

• Increases Horsepower & Torque – Low-friction formula improves engine efficiency.

• Synerlec® Technology – Superior oil film strength and anti-wear protection.

• Thermal & Oxidation Stability – Maintains viscosity at high operating temperatures.

• Excellent for Forced Induction Builds – Ideal for turbo and supercharged engines.

• Enhanced Engine Longevity – Protects under high RPM and heavy load conditions.

🔧 Recommended For

• Track cars, fast road builds, drift, drag and competitive motorsport

• Turbo, supercharged or high-compression engines

• Modified engines requiring 10W-40 performance racing oil

Important: XPR racing oils are not intended for long-interval daily road use. For normal driving and service intervals, use Royal Purple HPS or High-Performance Street oil instead.

🛠️ Specifications

• Viscosity: 10W-40

• Oil Type: Full Synthetic Racing Oil

• Size: 1 Quart (946ml)

• Series: Royal Purple XPR – Extreme Performance Racing

• Fuel Compatibility: Petrol, E85, race fuels

📦 What You Receive

• 1 × Royal Purple XPR 10W-40 – 1 QT Bottle