X-1R Engine Treatment Concentrate – 8 (oz)

Been using this for years. It makes a difference.

he does his job well

Have been using for years and first added to my 1987 Yamaha Vmax. This amazing. Additive not only made the engine run cooler but made the transmission silky smooth. It was a night and day difference when adding to a fresh oil change. Don’t believe the hate. Try it first. Have used in every motorcycle I have owned.. for you Harley/Victory and other cruisers give this a try on the next oil change and watch the CLUNK AND HEAVY CLANK you get on every gear change disappear… freaking amazing product…. (This is safe on all clutches and will not cause slipping).

Very good product and kept the engine quiet and breathe easy. Not sure why this is not being sold in Amazon anymore. Looking forward to buy this again

x1r amaged me always this engine treatment product is also very good. i used firstly x1r petrol treatmemt in range of x1r car prouducts. . i used it firstly in my octavia rally sports petrol engine but not feel a good diffrence only minor difference but after this i used it in volkswagon vento diesel i was amaged really but i was done some minor change in using of this treatment . i used x1r engine flush firstly this can clean up my engine with harmfull carbon & after this i used shell helix engine oil & pour a bottle x1r engine tretment in engine oil. & such a great experience i never feel this type of experience from my car past 3 year . engine sound feels like a new car this minimize my car engine sound & accelrate is also pump up . 4 star for car lovers highely recommended this product one star less only jst because i used x1r engine flush with this product . if my review is helpful for you car lovers plz thumbs up guyz ¥

I have a car that was feeling rough to drive. After using this treatment and driving about 1000 kms it seems to have become smooth to drive. Normally a new engine will get smoother over time even without treatment, but I am refering to a car that was driven 9000 kms and had turned rough due to rough driving almost to the point of ceasing. Although I was skeptical when I purchased i, this treatment really seems to help, you have to drive a few hundred kms to experience the difference. Good product. Recommended.

I would say vehicle is running smother now. But i do not see any difference in Mileage. Lots to drive . Lets see over a period. .

Very good product, Have run the car for about 600 km after adding this and I am seeing two main improvements : 1. Mileage has improved by around 1-2 km per litre (tested on both city roads and highway long drives) 2. Engine noise has reduced a bit. Will post edits once I have driven more.