Castrol 0w40 Oil Change Kit - Clio 4 RS, Megane 4 RS & Alpine A110

Preserve the raw output, responsiveness, and longevity of your modern turbocharged engine with Castrol EDGE 5L 0w40 RN17RSA motor oil. Explicitly formulated under factory reference 7711943670 to meet the strict engineering approval demands of Renault Sport and Alpine, this 100% synthetic lubricant features Fluid TITANIUM technology to double oil film strength under extreme loads.

An absolute rule for every high-stakes oil maintenance service or to safeguard your internal components following an ECU customization remap, this premium fluid stands as the definitive barrier against thermal breakdown for your performance vehicle.

The severe danger of using generic lubricants lacking explicit RN17RSA approval in modern engines

The latest generation of highly tuned sports engines imposes astronomical thermal stress on components like turbocharger bearings and piston crowns. By settling for a standard commercial synthetic oil or an incorrect viscosity index, you accept the heavy consequence of rapid lubricant oxidation and structural thinning when hot. Without the unique molecular stamina of the Castrol EDGE 0w40 RN17RSA standard, the protective oil film shears during sustained high-RPM track sessions. This exposes your engine to premature turbocharger wear, ring sticking due to carbon varnish, and destructive Low-Speed Pre-Ignition (LSPI) that can shatter a piston in seconds. You forfeit the crisp mechanical responsiveness of your performance car and risk sudden catastrophic engine failure.

Ignoring the explicit Renault 7711943670 specification causes high sulfated ash buildup, quickly clogging your restrictive Gasoline Particulate Filter (GPF). Relying on an unapproved oil results in critical oil pressure drops at high operating temperatures, accelerating timing chain wear and valve train fatigue.

Advanced Castrol Fluid TITANIUM technology engineered for extreme track loads

This 5-litre container of Castrol EDGE 0w40 physically transforms its structure under extreme pressure, locking its molecules together to insulate high-friction areas. Its ultra-fluid cold viscosity rating (0w grade) guarantees instantaneous oil pressure delivery upon cold starts, shielding your upper valvetrain instantly. Meanwhile, its robust hot viscosity rating (40 grade) ensures stable oil pressure and maximum shear resistance, even under elevated turbocharger boost pressures or aggressive track day customization profiles built into your sports chassis.

Comprehensive high-performance vehicle and engine compatibility guide

To maintain factory-intended power delivery and protect your emissions hardware, this 5L jug under reference 7711943670 is explicitly mandatory for the following sports models:

• Renault Clio 4 RS Phase 2 (1.6-litre Turbo 200ch / 220ch Trophy - Only models specifying the updated factory transition to RN17RSA lubricant standards)
• Renault Megane 4 RS 280 (1.8-litre Turbo TCe - Sport and Cup Chassis variants - Model years 2018 to 2024)
• Renault Megane 4 RS 300 Trophy (1.8-litre Turbo TCe 300ch - High-performance Trophy and ultra-lightweight Trophy-R specs)
• Alpine A110 (1.8-litre Turbo TCe 252ch - Pure, Légende, and Heritage editions - 2018 onwards)
• Alpine A110 S / R / GT (1.8-litre Turbo TCe 300ch track-focused and touring platforms requiring absolute oil shear resistance)

Rely on the elite technical proficiency of Optimiz Access

Since 2010, the Optimiz Access company has specialized in curating exceptional mechanical components and fluids for passionate owners, delivering flawless performance vehicle maintenance across top European marques (Renault Sport, Audi, Volkswagen, Porsche, Mercedes, BMW). From our physical workshop located in Northern France—closely serving regional automotive centers like Lille, Valenciennes, Cambrai, Arras, Seclin, Douai, and Saint-Quentin—our expert technicians carry out precise oil flush procedures and individual engine monitoring. Backed by a highly responsive international supply network, we guarantee fast shipping across the globe so that your cutting-edge racing supplies arrive right on time for your next mechanical overhaul.

Frequently Asked Questions (FAQ)

Can I use a standard RN17 spec oil instead of the RN17RSA formula?
Absolutely not. The standard RN17 specification is intended for high-production commuter cars. The RN17RSA formulation found in 7711943670 contains exclusive anti-wear and anti-oxidation additives required to withstand the severe thermal loads generated by Renault Sport and Alpine turbochargers under load.

How many liters of oil are required for an engine service on a Megane 4 RS or Alpine A110?
The engine oil capacity for the 1.8 TCe powerplant is roughly 4.1 to 4.3 liters when replacing the oil filter. This 5L container of Castrol EDGE 0w40 is perfectly portioned to complete the oil service while leaving a safe margin for topping up.

Provide the ultimate thermal armor for your premium powertrain

The operational lifespan of your modern sports engine depends entirely on the quality of its lubrication at extreme high temperatures. Never compromise on the caliber of your oil changes. Trust the professional standards and track background of Optimiz Access to supply your vehicle and order your 5L jug of Castrol EDGE 0w40 RN17RSA today.

Note: Genuine OEM oil filters, magnetic sump drain plugs, upgraded spark plugs, and performance air filters can be viewed at the bottom of this product page.