ZX1 Extralube Engine Friction Reducer 2x250ml=500ml

Best oil ever invented in my opinion!! Great cold start protection. Better miles per gallon n smother running. Used the oil back in the 90's glad i've found it again. Used to use this annually back then. Will be an annual purchase for my car. Thanx Amazon 👍

I didn't believe it either.....negates engine wear/noise. putting half a bottle in the engine and half in the petrol tank actually increases fuel efficiency.

Great value, and you do notice, a difference in the engine, it sounds quieter and, smoother have, used it for the last 20 years without issues, highly recommended product definitely worth the money and, will save you fuel as well especially in these, times with the price of fuel at the pumps.

I've used ZX1 in my cars for the past 37 years - since I owned my 1st car - and Ive neve had a problem. I put it in my engine oil, gearbox oil, radiator at the recommended intervals and have never had any wear related problems. I had to get my timing belt replaced recently (60k miles) and as part of the work the manufacturer recommended getting the water pump replaced. as the car was still under warranty I agreed. The mechanic phoned me up to confirm if I wanted it changed as when he examined the old one he could find absolutely no wear on it. My cars do about 90 - 100k before I change them and I've NEVER had to do any work on the valves/pistons etc or had MOT fails on emissions

Not exceptional value

I have used this in my cars and motorcycles, with no issues so I guess it works

Fantastic oil treatmentI'll recommend it for any car

I hoped for it but this works like a miracle. Previously I used twice another products and I know one worked (kind of) and I was about to buy another known European brand but this is something else. Maybe I have suddenly hearing problem but after 2 days of shorter drivings engine is so much quiter. Starts easier and acceleration.. on mu 2.5T which felt underpowered this made my hands shaking. It is fantastic product and I will always buy it from now on. I can't believe. I didn't go to motorway to measure 0-60 however although my car should make it in 7.5s and did it in around 8-8.5s now my rough estimation is 7s. Huge, huge difference. Thanks!