Castrol • Liquid Engineering
Castrol Classic EP90 1L 1840 Gear Oil GL-4 Classic Car Gearbox Differential
Castrol Classic EP90 1 Litre is a straight SAE 90 weight gear oil meeting GL-4 specification, essential for classic and vintage vehicles with non-hypoid gearboxes and axles specifying SAE 90 grade mineral oil. It provides outstanding extreme-pressure protection for gears, synchronisers, and bearings in classic vehicle drivetrains.
★ Key Features
| SAE 90 Straight Weight | Correct viscosity for classic gearboxes specifying SAE 90 |
| GL-4 Specification | Meets GL-4 for non-hypoid gearboxes and synchromesh transmissions |
| Classic Vehicle Specialist | Formulated for vintage and classic vehicle drivetrains |
| Extreme Pressure Protection | EP additives protect gears from wear and scoring |
| Protects Synchronisers | Safe on brass and bronze synchromesh rings in classic gearboxes |
| Mineral Oil Formula | Correct non-synthetic formulation for older seals and materials |
ⓘ Product Specifications
| Brand | Castrol |
| Product | Classic EP90 |
| Part Number | 1840 |
| Volume | 1L |
| Pack Size | 1 x 1L |
| Total Volume | 1l |
| Oil Type | Mineral Gear Oil |
| Viscosity Grade | SAE 90 |
| Specification | GL-4 |
| Application | Classic Car Manual Gearbox, Overdrive, Rear Axle |
| Compatible Engines | Petrol, Diesel |
| Condition | New |
▶ How to Use
- Check classic vehicle handbook for correct gear oil specification.
- Drain warm oil for best drainage.
- Fill to the correct level via the filler plug hole.
- Replace filler plug to the correct torque.
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