Advanced XADO Petrol/Diesel Additive Restores Treats Engine Knocks Worn Bearings, up to 5 liter oil

Instantly quietened the engine upon starting, good product

Definitely made a diffrence. Quieter and feels refined.The engineer seems to be alot happier in its self.Not really noticed a MPG diffrence but not really taken any notice as that's not what I was looking for.All in all on a 70,000 mile deisel engine it was definitely worth it.

This is an excellent product you can literally hear the engine sound quitening as you run your car after putting it in. My car runs more smoothly too.I am very pleased to say communication with the company was really good after the delivery company lost my parcel, they have sorted it out. Many thanks. I will buy again when needed.

I have used this product for probably 15 years on all the cars I have had. At every oil change top back up with it again. Never had any problems with engines which may be this but this I would like to think is the case.

Good but very expensive

Used it after getting my oil changed (Hyundai i10) and the engine has been more quiet and the car just feels a bit better, totally recommend Xado, awesome brand that sells stuff that actually works

Good

Looks like it works the way it's told by the manufacturer.