LIQUI MOLY 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!

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)

Good product seems to have made fuel efficiently better and has smoothed the engine out. Was smooth anyway but seems to improved more. Would use again every oil change, for the money it’s silky not too.

I have used this in a 2005 Mercedes C180K with 105K on the clock, the compressor was just a little rattly on start-up so I thought I would give it a try. The vehicle has been well serviced and looked after. There is no doubt that the compressor is now very quiet on start-up so the application has made a difference, as regarding normal running I cannot comment as the vehicle did not have any issues. My feeling is that there is a slight improvement in MPG but I do not have any empirical evidence to support that claim. Is it worth the outlay? I would say yes in my case but you always have to be aware of the placebo effect............

Has definitely quietened my engine and made things a bit smoother. Cannot speak to fuel economy but the additive seems to be of high quality. Engine is quieter in cold start

As expected, the product is high quality. Liqui Moly consistently delivers great results. The pricing is very competitive, and the delivery arrived ahead of schedule

I've used moly slip since the mid 60s, when I used to race a 850cc mini, everyone in the club used it because oil wasn't as good as as it is today. Molly slip (liquid molly) prolongs engine life, improves economy and protects combustion engines, they run smoother it's great stuff. I've never blown an engine even under great stress, use it every oil and filter change, you'll notice the difference

Quite a sludge like product… used once but prefer STP

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

Das ultimative Mittel damit es im Getriebe rund läuft! Seit Jahren bei mir im Einsatz.Egal ob Auto,Roller oder Rasenmäher ( Benzin).Die Motoren laufen sofort ruhiger, gleichmäßig.Das kann ich wirklich nur empfehlen.Preis/ Leistung ist super gut !!

Der Dieselmotor läuft merkbar ruhiger, gerne kaufe ich bei Bedaf wieder.

Mejora el sonido y el rendimiento del motor y lo protege del desgaste

Excelence