# Buy Castrol GTX 5W-30 RN17 engine oil? - Auto-Service ## Castrol GTX 5W-30 RN17 engine oil 5 litres Oil & Additives / Oil / Engine oil 5w30 Fully synthetic 5W-30 engine oil with Renault RN17 approval for modern petrol and diesel engines. This 5 litre pack is suitable for maintenance where an ACEA C3 / RN17 oil is required. ## Prices and stock - **CASTROL A18974**: € 74,90 incl. VAT — 4 in stock ## Order URL [Castrol GTX 5W-30 RN17 engine oil 5 litres](https://www.auto-service.be/en/oil-additives/oil/engine-oil-5w30/castrol-gtx-5w-30-rn17-engine-oil-5-litres) ## Alternate URLs - **nl**: [Castrol GTX 5W-30 RN17 engine oil 5 litres](https://www.auto-service.be/nl/olie-additieven/olie/motorolie-5w30/castrol-gtx-5w-30-rn17-motorolie-5-liter) - **fr**: [Castrol GTX 5W-30 RN17 engine oil 5 litres](https://www.auto-service.be/fr/huile-et-additifs/huile/huile-moteur-5w30/castrol-gtx-5w-30-rn17-huile-moteur-5-litres) - **en**: [Castrol GTX 5W-30 RN17 engine oil 5 litres](https://www.auto-service.be/en/oil-additives/oil/engine-oil-5w30/castrol-gtx-5w-30-rn17-engine-oil-5-litres) ## Images - ![Product image](https://www.auto-service.be/assets/media/38405/conversions/castrol-motorolie-gtx-5w30-rn17-5l-optimized.jpg) ## Specifications - **Reference**: CASTROL A18974 - **EAN**: 4008177184253 - **Brand**: CASTROL ## Product description ### Engine oil for Renault RN17 engines Castrol GTX 5W-30 RN17 is a fully synthetic engine oil for modern petrol and diesel engines that require an oil with Renault RN17 specification. Thanks to its 5W-30 viscosity, this oil is tailored for smooth cold starts and stable lubrication at operating temperature. This 5 litre container is practical for a complete oil change interval in many passenger cars. It is especially suited to drivers and professionals specifically looking for an oil with the correct manufacturer approval, without having to opt for a general universal engine oil. ### Protection for everyday use The GTX range was developed to keep the engine cleaner and provide protection against deposits, sludge formation and wear. This is particularly relevant for vehicles that often make short trips, are driven in varying temperatures or are regularly used in city traffic. In practice, this helps keep oil performance stable between service intervals. For garages and DIY users, this is a logical choice when the correct RN17 standard is decisive for a proper service. ### Important specifications The main technically confirmed characteristics: - viscosity grade: SAE 5W-30 - content: 5 litres - specification: ACEA C3 - manufacturer approval: Renault RN17 - density at 15°C: 0.850 g/ml - kinematic viscosity at 40°C: 73 mm²/s - kinematic viscosity at 100°C: 12.2 mm²/s - viscosity index: 166 - pour point: -39°C - flash point: 212°C This combination makes the oil suitable for applications where a modern mid SAPS engine oil with ACEA C3 characteristics and Renault RN17 requirement is needed. ### Suitable for maintenance and professional use This Castrol engine oil is relevant for: - periodic maintenance of vehicles with RN17 requirement - independent garages and workshops - motorists who carry out their own maintenance - use in petrol and diesel applications where 5W-30 ACEA C3 / RN17 is required Always check your vehicle's service book or manufacturer specifications before choosing oil. The correct specification is essential for compatibility and proper engine protection. ## Breadcrumbs - [Oil & Additives](https://www.auto-service.be/en/oil-additives) - [Oil](https://www.auto-service.be/en/oil-additives/oil) - [Engine oil 5w30](https://www.auto-service.be/en/oil-additives/oil/engine-oil-5w30) ## Related products - [MPM Engine Oil 5W-30 Premium Synthetic C2 for Citroën and Peugeot, 5L](https://www.auto-service.be/en/oil-additives/oil/engine-oil-5w30/mpm-engine-oil-5w-30-premium-synthetic-c2-citroenpeugeot-5l) - [Castrol Magnatec Start-Stop 5W-30 C3 engine oil 1L](https://www.auto-service.be/en/oil-additives/oil/engine-oil-5w30/castrol-magnatec-stop-start-5w30-c3-1l) - [Bardahl 5W30 XTC engine oil 1L for optimal engine performance](https://www.auto-service.be/en/oil-additives/oil/engine-oil-5w30/bardahl-5w30-xtc-motor-oil-1l) - [Bardahl 5w30 Xtra engine oil, 20L](https://www.auto-service.be/en/oil-additives/oil/engine-oil-5w30/bardahl-5w30-xtra-motor-oil-20l) - [Bardahl 5W30 XTEC C3 engine oil 20L for optimal engine performance](https://www.auto-service.be/en/oil-additives/oil/engine-oil-5w30/bardahl-5w30-xtec-c3-motorolie-20l) ## Webshop catalogue - 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