Oil Additive | 300 ml | Oil additive | SKU: 2591

I’ve been using LIQUI MOLY Oil Additive 300 ml in my car tuning and workshop business for months now, and it’s genuinely impressive. I’ve tested it on a wide variety of engines — from everyday vehicles to high-performance tuning projects — and it consistently delivers excellent results. The additive improves engine smoothness, reduces friction, and helps keep even older engines running efficiently. I’ve noticed quieter operation and more responsive performance after use, which gives me confidence when returning tuned or serviced vehicles to my customers. I’ve tried other oil additives before, but none match the quality, reliability, and consistency of LIQUI MOLY. It’s perfect for professional use, and the 300 ml size is ideal for treating multiple engines without waste. For anyone running a tuning, repair, or automotive workshop, this additive is a must-have. It’s a small investment for real improvements in engine performance and longevity. Highly recommend!

I despair at times. First things first. Liqui Moly are a huge company. Highly regarded in the automotive industry. They make some of the best chemicals in the world. So if you are worried about putting this in your engine, then there is absolutely no need to worry. It will not harm your engine at all. If you own a car less than 5 years old, then there is no need to use this. Just use high quality oil. If your car is older then this additive will help your oil to stick to the internal components of the engine, in most cases forming a barrier from wear. And it does a really good job at it. To my next point. People putting this in your engine along with fresh oil, and then complaining the oil is now black. Give your head a wobble. The additive IS black, and will turn your engine oil the same colour. As soon as you take the lid off you can see it is black (or a dark grey.) If this a major concern to you, there are cheaper alternatives on the market which are clear. It won't be as good,m yet your oil will look nice for a few hundred miles. All the 1 star reviews because the oil is now black. I really despair at times lol 😁

I’m old enough to remember Molly Slip oil addertive. I worked in BMS Motor Spares while I was doing my exams and remember being told how good Molly Slip was. My current car is a 2017 VW Golf 1600 Diesel turbo with 80000 miles on the clock. I thought I’d give this oil treatment a try. I’m amazed at it. I haven’t changed anything else on the car but it’s running cooler, quieter and smoother and my mpg have gone from 46 mpg to 52 mpg. Great stuff well recommended!

Funny colour but , done the job that it stated.

Pretty good - I'd seen some videos and decided to give it a go - added to diesel and instantly made the engine run more smoothly and quietly. Will need to give it some time to see if the fuel economy improves. 1 can did 2 cars (150ml each) or 5% of your engine oil capacity (i.e. if your capacity is 4L engine oil - 4000ml , 5% of that is 200ml, so slightly below 5% each)

Definitely buy again

Brother use buy on his behalf said its dose the job fine

Does what it says quieter engine 1999 transit diesel

Aucun danger, maximum 100/💯 de produit associé a une huile 0-40 est une mixture parfaite pour une usure minimum. Produit top.

Superbra!

Für mich persönlich ein tolles Produkt das ich in allen Fahrzeugen und auch in meinem Stromerzeuger benutze , die Motoren laufen alle sehr sauber und zuverlässig damit und das bereits seit Jahren . Bin rundum zufrieden und kaufe es immer wieder .

Excelence

Calidad.