Engine Leaking Oil or Running Noisy? Liqui-Moly Motor Oil Saver 20320 — Stop Leaks & Reduce Engine Noise Fast

If your engine is dripping oil, burning through oil faster than normal, or running louder than it should, deteriorated seals and gaskets in the oil circuit are the most common cause. In most 4-stroke gas and diesel engines, rubber and plastic seals harden and shrink over time — especially in high-mileage or older vehicles. When they fail, oil escapes past the seals, causing external leaks, increased consumption, smoking, and elevated engine noise. ⚡ Common issue in high-mileage gas and diesel engines, with or without turbochargers. Part 20320 is the genuine Liqui-Moly Motor Oil Saver that regenerates and conditions deteriorated seals, minimizes or eliminates external leaks, reduces oil consumption, and restores quiet engine operation — without engine disassembly.

❓ Is This the Right Part?

This is the correct treatment if ALL of the following are true:

• ✔ Engine runs but has visible oil drips or spots under the vehicle
• ✔ Oil level drops between changes faster than expected
• ✔ No catastrophic seal failure or major mechanical damage present
• ✔ ONLY problem is minor-to-moderate oil leaks, consumption, smoking, or engine noise

Not sure? Send us your engine specs — we'll confirm compatibility before you order.

🔧 Common Symptoms

• Oil spots or drips under the vehicle after parking
• Oil level dropping between scheduled oil changes
• Blue or grey smoke from the exhaust, especially on startup
• Increased engine ticking or knocking noise at idle or under load

✔ If these symptoms match, deteriorated oil circuit seals are the most likely cause.

✔ In most cases, Liqui-Moly Motor Oil Saver begins conditioning seals within 600–800 km (400–500 miles) and measurably reduces leaks and noise.

📦 Part Details

• Part Number: 20320
• Type: Motor Oil Saver / Seal Conditioner Additive — 300mL
• Treats: 3–5 litres (0.7–1.1 gal.) of motor oil per bottle
• Compatible With: 4-stroke gas and diesel engines, turbo and non-turbo; safe for catalytic converters and GPF/DPF particulate filters
• Not Compatible With: Wet clutch systems
• Brand: Liqui-Moly

⚙️ How to Use

Skill Level: EASY — 5 Minutes. No drain required — add directly to existing engine oil at any time. Check dipstick before adding to avoid overfill. Pour the full 300mL bottle into the engine via the oil filler cap. Run the engine for 10–15 minutes to circulate the additive. Effects are typically noticeable after 600–800 km (400–500 miles) of driving. Compatible with all conventional and synthetic motor oils.

✓ Compatible Engines

Confirmed compatible with 4-stroke gasoline and diesel engines in passenger cars, light trucks, and SUVs — including turbo and non-turbo configurations. Suitable for use in vehicles from Chevrolet, Ford, GMC, Dodge/Ram, Toyota, Honda, BMW, Mercedes-Benz, Volkswagen, Audi, and other major manufacturers. Contact us to verify compatibility with your engine before ordering.

💡 Pro Tip