WOC GENUINE OILS FOR OPEL & GM.
Welcome to the definitive source for engine oils engineered specifically for Opel and GM vehicles. Our 100% synthetic lubricants are formulated to meet the exact standards demanded on the factory floor. When you require uncompromised performance, exceptional thermal stability, and ultimate protection for modern emission systems — you require the authentic engineering of Wolf Oil Corporation.
High Protection &
Real Fuel Economy
The modern European driving landscape demands lubricants that do more than simply lubricate. Our engine oils for Opel cars are formulated to deliver superior engine protection and optimised fuel efficiency simultaneously — through advanced Mid-SAPS technology (reduced Sulfated Ash, Phosphorus, and Sulphur).
Recent Opel engines, compliant with Euro 4, 5, and 6 emission regulations, are equipped with highly sensitive exhaust after-treatment systems. Standard oils contain sulphur and phosphorus that inhibit catalytic converter operation, while sulfated ash clogs Diesel Particulate Filters (DPFs), leading to shortened regeneration cycles, quick oil aging, and engine power loss.
Our lubricants are engineered to preserve these critical components — maintaining high thermal stability and outstanding resistance to high temperatures, preventing black sludge formation and viscosity increases caused by combustion residues. Your Opel engine operates at peak efficiency, exactly as its designers intended.
Pioneering the Future: The First Combined
dexos™D and dexos2™ Solution
Wolf Oil Corporation is proud to be the first to market with a revolutionary combined specification product for Opel and GM vehicles. Our flagship WOC MULTIGRADE MS-GD 5W-30 holds the official GM dexos™D approval while simultaneously meeting the rigorous demands of the dexos2™ specification. This means you no longer have to choose between the legacy protection of dexos2™ and the advanced performance of dexos™D.
The Right Language for Europe
In Europe, Opel is the dominant consumer-facing brand. Most drivers know their car as an "Opel Astra" or "Opel Corsa" — they do not think of it as a "GM vehicle." So the marketing language should lead with Opel, not GM.
The consumer sees what matters: their car brand (Opel) and the official approval authority (GM). The dexos2™ GM APPROVED badge carries the full weight of the GM certification — no need to repeat "GM" in the headline text.
Compatible Opel Models
WOC dexos® licensed oils cover the full range of Opel passenger cars, SUVs, and light commercial vehicles. The same products also cover Vauxhall (UK), Saab (Sweden), and European Chevrolet vehicles on GM platforms.
From dexos™ to OV0401547
As engine technology evolves, so do the specifications required to protect it. Our specialised product range provides comprehensive coverage across the entire spectrum of GM and Opel standards.
For over a decade, the benchmark
The essential standard for the European market. Designed to endure severe thermal constraints and ensure compatibility with modern after-treatment systems like DPFs and catalytic converters. Fully supersedes GM-LL-A-025 (Gasoline) and GM-LL-B-025 (Diesel) — universal coverage for most Opel diesel and gasoline engines from Model Year 2010 onwards.
Formulated for modern, downsized, turbocharged gasoline direct injection (TGDI) engines. Provides critical protection against Low-Speed Pre-Ignition (LSPI) — a phenomenon that can cause catastrophic engine damage. Gen 3 offers further enhancements in oxidation resistance and sludge prevention.
Following Opel's integration into Stellantis
A new era of proprietary specifications has begun. The Opel OV0401547 standard represents the future of Opel lubrication, focusing on low-viscosity, high-efficiency performance.
Opel Approval References
| Application | Opel / GM Reference | Note |
|---|---|---|
| Engine Oil — Gasoline | GM-LL-A-025 | dexos2™ / dexos1™ |
| Engine Oil — Diesel | GM-LL-B-025 | dexos2™ / dexosD™ |
| Opel Gasoline (new) | Opel OV 040 1547-G30 | Latest Opel petrol engines |
| Opel Diesel (new) | Opel OV 040 1547-D30 | Latest Opel diesel engines |
| Opel Low-Viscosity | Opel OV 040 1547-A20 | 0W-20 gasoline/diesel |
| Coolant | Opel 1940663 | OAT Long Life |
| Gear Oil | Opel 1942387 | Axle & differential |
| Transmission | Opel 1940706 | ATF / DEXRON® VI |
70 Years of European
Blending Mastery
Founded in Belgium in 1955, Wolf Oil Corporation is not merely an aftermarket supplier — we are a pioneering force in fluid technology and a trusted OEM blending partner with over 30 years of direct manufacturer collaboration.
Our state-of-the-art research and development centre focuses on cutting-edge innovations, such as MultiFactor Oil Serums, which rejuvenate engines and extend service life beyond standard intervals.
When you choose our engine oils for your Opel, you are not just selecting a product that "meets the specification" — you are choosing an official, OEM-approved formulation. The exact level of quality that engineers rely on to protect their engines from the moment they leave the production line.