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Six ways to improve your vehicle’s engine performance using oil additives

Six ways to improve your vehicle’s engine performance using oil additives

Say bye-bye to noisy, thirsty oil guzzlers without changing your car!

Keeping an eye on your oil levels and topping up your engine oil is a cyclical requirement.  You ask for a flush and have your oil changed at your service, but how can you improve the quality of the oil and therefore the performance of your vehicle?

There are many different additives on the market but its tricky to know exactly which one your engine needs. Armed with helpful advice from the pro’s.  Here we will talk you through our best sellers and why they are the most popular option.

To find out how to improve your engine, read on for helpful advice from the experts.

1. Cera Tec.

Liqui Moly 3721 Cera Tec Oil Additive

Newsflash: Preventing direct metal-to-metal contact, reduces friction.   

Cera Tec provides a high-tech ceramic wear protection.  Give it a through shake before adding it to your oil and it will reduce fuel consumption  and emissions, increasing engine life. 




For engines, manual transmissions, pumps and compressors. 300ml bottle= 5 litres of oil. With a long-term effect lasting around 50,000 km. Suitable for toothed belts running in oil. Not suitable for use with wet clutches!  Liqui Moly recommends adding it to fresh oil during a oil change or add to existing oil when you have at least 5,000km (3,100 miles) left before an oil change. 

 2. Oil Additive with Mos2.

Liqui Moly 2591 Oil Additive

It’s no secret that the addition of molybdenum disulphide is Liqui Moly’s special ingredient because this is how it all started 40+ years ago and it’s still the leading oil additive.  MoS2 is a lubricant similar and a high-pressure high-temperature HPHT anti-wear agent.  It forms strong films on metallic surfaces and is a common additive to the HPHT greases "It forms a protective layer on the metal surface, preventing direct contact between adjacent metal surfaces in the engine," says David Kaiser, Head of Research and Development at LIQUI MOLY.

MoS2 oil additive is specially formulated to significantly extend the life of your engine (especially if it ever suffers a momentary loss in oil pressure), while giving it maximum protection in high-stress, high-load applications, as experienced during towing, off-roading, spirited driving and under racing or competition conditions.

MoS2 was originally developed to maintain lubrication in piston-driven aircraft engines in the event of a loss in oil pressure and to prevent complete engine seizure.  The patenting of this liquid in 1957 was Liqui Moly’s first product. This anthracite-coloured additive superimposes on the "normal" colour of the oil.


The low-friction lubricant MoS2 creates a heavy-duty lubricant film on all frictioning and sliding metal surfaces. It reduces friction, guaranteeing the aggregates run more smoothly. That produces these benefits: Significant fuel and oil saving, scientifically proven wear reduction, high reliability, antifriction properties.



3. Hydraulic Lifter Additive

LM 2770 Hydraulic lifter additive

Reduces hydraulic tappet noise.  For loud lifters this will improve the function of timing chain tensioners filled with oil pressure, which can result in the reduction of timing chain noise.


High-performance additive that damps down noise generation of contaminated and sticky hydraulic tappets. Cleans oil holes and ducts in the oil circuit and ensures that they once again work optimally. Improves the function of timing chain tensioners filled with oil pressure, which can result in the reduction of timing chain noise

 4. Viscoplus for Oil.

8958 viscos plus for oil

Reduces oil consumption and improves compression through optimally flexible sealing. Stabilizes the motor oil and provides ideal oil pressure. Reduces engine noise build-up and ensures outstanding lubricating film stability. Reduces wear.


Modern, mono-functional high-performance additive for stabilizing the viscosity of motor oils. Visco Stabil offers outstanding protection against mechanical and therefore permanent shear losses to the oil under extreme running conditions and is effective against the thinning of motor oils due to frequent cold starts.


5. Motor Oil saver.

1802 motor oil saver

Regenerates rubber and plastic engine seals such as shaft seals and valve stem seals and prevents oil stains under the vehicle. Counteracts oil dilution. Reduces engine noise and oil consumption through piston rings and valve guides.


Suitable for all commercial motor oils in gasoline and diesel engines with and without diesel particulate filter (DPF). Tested safe with catalytic converters and turbochargers. Can contents are sufficient for up to 5 l motor oil. Sealing action after 600 – 800 km mileage. Not suitable for motorcycles with wet clutches.

 6. Oil Smoke Stop

LM 8901 oil smokestop RS 

Oil Smoke Stop reduces the oil consumption of gasoline and diesel engines via the piston rings and valve guides. It prevents blue smoke and oil mist and acts against the loss in viscosity in motor oils. Oil Smoke Stop increases the compression ratio and reduces engine noise. Provides extra protection in engines with high levels of wear. Extends the service life of catalytic converters.


For all gasoline and diesel engines. Compatible with all commercially available motor oils. Not suitable for use in motorcycles with wet clutches.



The good news is that you have plenty of options depending on your lifestyle and usage if you are using your car as a simple run around for short distances, towing the family caravan or your speed boat for a weekend away.  However, if you feel like your vehicle isn’t performing how you'd expect or not improving with an oil treatment you may want to consider flushing your engine and opting for a different spec of oil.

The Liqui Moly Engine Flush cleans the engine from the inside removing deposits whilst improving compression; Shop for the Engine Flush here.

Use this link to find out more about Liqui Moly Oils which are tailored to suit each vehicle whether it's a car or truck, motorcycle or moped, scooter or quad bike, bus or digger, vintage car or boat.


LEARN MORE: Dual Protection with Cera Tec


Liqui Moly oil additives oil improver differences Vs

Next article Dual protection with Cera Tec

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