The Liqui Moly LM20038 Hydraulic System Oil is a fully synthetic, high-performance fluid engineered for vehicles equipped with central hydraulic systems, including level control, hydropneumatic suspension, steering circuits, and hydraulic shock absorber systems. It delivers outstanding thermal stability, corrosion protection, and reliable low-temperature performance year-round.
$21.43
The LM20038 Hydraulic Oil by Liqui Moly is a fully synthetic fluid built specifically for central hydraulic systems. Moreover, this fluid targets demanding applications such as level control systems, hydropneumatic suspension units, power steering circuits, and hydraulic shock absorber systems. Its advanced additive package delivers exceptional thermal stability, strong wear protection, and an elevated corrosion-inhibitor content. Therefore, this LM20038 Hydraulic Oil maintains consistent system pressure and reliable hydraulic response throughout its entire service life. Additionally, its outstanding low-temperature flow properties ensure smooth operation even during cold starts and in harsh winter conditions.
Liqui Moly is a German lubricant manufacturer with a global reputation for precision additive technology and strict quality standards. Furthermore, this central hydraulic fluid goes beyond minimum specifications — it actively exceeds the performance demands of complex hydraulic circuits. Liqui Moly engineers this fluid to perform reliably in both extreme heat and cold, where inferior products often cause sluggish response or pressure fluctuations. Additionally, Liqui Moly backs this product with approvals from major OEM manufacturers, making it a trusted choice for both professional workshops and vehicle owners. Consequently, choosing this fluid means investing in long-term system health rather than short-term cost savings.
Recognizing early warning signs helps avoid costly hydraulic system repairs. First, sluggish or uneven suspension response during ride-height adjustments often points to fluid that has lost its pressure-holding properties. Similarly, increased steering effort or inconsistent power-assisted steering feel frequently indicates contamination or oxidation buildup inside the hydraulic circuit. Furthermore, if the system has not been serviced within the manufacturer’s recommended interval, proactive replacement is always the safest choice. Finally, milky or heavily discolored fluid during a drain confirms moisture contamination, and the system requires immediate attention to prevent internal damage.
SKU: 20038 (LM20038) — Liqui Moly Central Hydraulic System Oil
Fully synthetic hydraulic fluid for central hydraulic systems
High thermal stability for outstanding aging resistance and extended service life
Maximum wear protection and favorable friction behavior for smooth operation
Outstanding low-temperature performance for reliable cold-weather startup
Elevated corrosion-protection additive content to safeguard internal components
Maintains consistent system pressure and reliable hydraulic response
Always verify the exact fluid specification in the vehicle owner’s manual or service guide before filling. Moreover, use this product unmixed with other hydraulic fluids to maintain its full protective properties. Before filling, ensure all equipment is thoroughly clean, since even minor contamination can compromise the entire hydraulic circuit. After completing the fill, verify fluid level according to the manufacturer’s procedure and inspect all connections carefully for leaks before returning the vehicle to service.
| Manufacturer | Specification / Part Number |
|---|---|
| Volkswagen / Audi | G 002 000 / G 004 000 |
| BMW | 81 22 9 407 758 |
| Mercedes-Benz | 345.0 |
| Ford | WSS-M2C 204-A |
| Weight | 2.4 lbs |
|---|---|
| Dimensions | 4.0 × 4.0 × 9.0 in |
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