Automotive engine additive that aims to quiet hydraulic tappets and clean oil circuit ducts, restoring smoother running. Drivers gain a calmer, more comfortable ride and fewer rattles during cold starts. Could Liqui Moly Engine Oil Additive be the simple fix for persistent tappet noise?
⚡ At a Glance
- • Hydraulic Tappet Care: Cleans lubrication holes and ducts, helping to prevent hydro tappet noise
- • Best for: Owners of petrol and diesel cars noticing tappet noise or rough idle
- • Not ideal for: Motorbikes with wet clutches
Targets hydraulic tappet noise while cleaning oil circuit ducts. Suitable for petrol and diesel engines, not suitable for motorbikes with wet clutches.
Quieter running and reduced lifter noise - with targeted hydraulic tappet cleaning
Cleans lubrication holes and ducts in the oil circuit, which prevents hydro tappet noise and helps secure optimal tappet performance. The formulation works when mixed into the engine oil and the engine is run until warm.
Noticeably reduces knocking and rattles from the valve train, producing a smoother idle and calmer running. Owners report quick audible improvements after treatment.
Broad engine compatibility - with formulation that mixes into commercial motor oils
Designed for use in both petrol and diesel engines, and can be mixed with all commercially available motor oils. The additive integrates into the oil circuit, rather than requiring a separate treatment cycle.
Safe to use across most cars without changing oil type, making it suitable for mixed fleets and routine maintenance. Offers a straightforward option when addressing tappet-related symptoms.
Simple dosing and application - with a single 300 ml can treating up to 6 litres
One 300 ml can is sufficient for up to 6 litres of motor oil, and the additive can be introduced at any time during operation. After adding, run the engine until it reaches normal operating temperature.
Quick to apply during a service or as an interim fix between oil changes, with a clear dosing rule for most passenger cars. Practical for DIYers and workshop technicians alike.
✨ The 4 Key Reasons for Liqui Moly Engine Oil Additive
- Cleans lubrication ducts - Restores oil flow to tappets within short running period
- Universal compatibility - Works with petrol and diesel oils without changing oil
- 300 ml dosage - Treats up to 6 litres of oil per can
- Simple application - Add at any time and run engine until warm
📋 Technical Details at a Glance
- Category: Engine oil additive
- Brand: Liqui Moly
- Product type: Hydraulic tappet additive
- Volume: 300 ml
- Treats up to: 6 litres of motor oil per can
❓ Frequently Asked Questions
Q: Can I use this additive in my diesel car?
A: Yes, the additive is suitable for both petrol and diesel engines and can be mixed with commercially available motor oils.
Q: How much oil does one 300 ml can treat?
A: One 300 ml can is sufficient for up to 6 litres of motor oil, and it can be added at any time during operation.
Q: Is this safe for my motorcycle?
A: Not suitable for motorbikes with wet clutches, so avoid using it in those applications.
🏆 Our Verdict
Well suited for drivers who hear tappet noise and want a quick, straightforward treatment. The cleaning action on lubrication holes and compatibility with standard motor oils make it a practical maintenance aid. Cost-effective for spot treatments and useful as part of regular valve train care, offering value when used appropriately over time.
