5w30 Dexos 1 Gen 2 Synthetic Engine Oil for Vauxhall Fiat Peugeot Citroen
4049-1
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5W30 Dexos 1 Gen 2 Synthetic Engine Oil
Ultimate LSPI Protection for Modern Turbo Petrol Engines
This Westway Oils premium fully synthetic 5W-30 engine oil is specifically engineered to meet the stringent GM Dexos 1™ Gen 2 specification. It is the essential lubricant for modern high-performance Turbocharged Gasoline Direct Injection (TGDI) engines found in Vauxhall, Fiat, and PSA (Peugeot/Citroen) vehicles.
Key Performance Benefits
- ✔ LSPI Prevention: Protects GDI and TGDI engine components.
- ✔ Fuel Efficiency: Advanced low-friction synthetic formula.
- ✔ Turbo Protection: High thermal stability for turbochargers.
- ✔ Engine Cleanliness: Resists sludge and varnish build-up.
Technical Specs
| Viscosity Grade | SAE 5W-30 |
| Base Oil | 100% Fully Synthetic |
| API Standard | SN Plus / SN / RC |
| ILSAC Standard | GF-5 |
| GM Specification | dexos1™ Gen 2 |
Compatibility / Fitment Guide
| Manufacturer | Application | Requirements |
|---|---|---|
| Vauxhall / Opel | Astra, Corsa, Insignia, Mokka (Turbo Petrol) | dexos1™ Gen 2 |
| Fiat / Chrysler | Modern Petrol Turbo Engines | 9.55535-CR1 |
| PSA (Citroen/Peugeot) | PureTech Turbo Engines | B71 2297 Compliance |
| Asian OEMs | Suzuki, Subaru, Nissan, Mazda | API SN Plus / ILSAC GF-5 |
OEM Cross Reference
| GM / Vauxhall OEM | 95599877, 19350777, 95599903 |
| ACDelco | 10-9244, 19350776 |
| Ford | WSS-M2C946-A, WSS-M2C929-A |
Questions & Answers
Is this oil suitable for Diesel engines?
No. Dexos 1 Gen 2 is specifically designed for gasoline (petrol) engines. For GM/Vauxhall diesel engines, you typically require Dexos 2 or Dexos D specifications.
Why is "Gen 2" important for my turbo car?
Small, high-output turbo petrol engines are prone to "Low Speed Pre-Ignition" (LSPI) which can crack pistons. The Gen 2 chemistry is specifically formulated to prevent this premature combustion.
Is this oil backwards compatible?
Yes, Dexos 1 Gen 2 is fully backwards compatible with older vehicles that originally specified the first-generation Dexos 1 oil.
Note: Blended in the UK by Westway Oils. Please verify your vehicle handbook for the correct viscosity and specification before use. Domain: 4boats.co.uk.
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