Diesel All-in-One, 237 ml, Improves Performance and Protection

I recently tried AMSOIL All-in-One Diesel in my Mahindra Scorpio Classic, and the difference is seriously impressive! From the first fill-up, I noticed smoother engine performance, better throttle response, and even a slight improvement in fuel efficiency. The engine runs quieter. What I love most is how convenient it is—no separate additives needed. Just pour it in with the fuel, and it cleans injectors, lubricates the system, and boosts combustion. After a few hundred kilometers, my Scorpio feels more responsive, especially on highways and inclines. If you own a diesel vehicle “this is a must-try”. The results speak for themselves—better performance, cleaner engine, and overall smoother drives. Definitely sticking with AMSOIL from now on! 5/5 – Highly recommended! 🚀

best in class effective product, especially for the BS4 Engines. Helps to tune the engine and reduce the noise, and lubricate the throttle body as expected. Improves performance and pickup.

I used AMSOIL Diesel All-in-One (237 ml) in my Kia Seltos diesel during a full tank refill (about 50 litres). The difference was instantly noticeable — the engine felt smoother, idling became quieter, and power delivery turned more linear instead of jerky. On the highway, the car pulled effortlessly, and the overall driving feel was much more refined. Cold starts were also noticeably smoother, with less noise and vibration. I can say with confidence that the additive really enhances engine performance and fuel system cleanliness as promised. The packaging is excellent — sturdy, spill-proof, and easy to pour. The price is a bit on the higher side, but considering the results, it’s worth it for anyone who wants to keep their diesel engine at peak efficiency. I’ll 100% buy it again and recommend it to anyone driving a modern diesel car, especially for highway users who want smoother performance and long-term protection.

I have used half of the bottle in full tank of KIA Sonet Diesel. I have done the process 2 times now. A very minor change in the engine sound. Seems to be doing its job of cleaning fuel lines and injector nozzles. No change in fuel economy. No change in power. I have driven 70K on Odo. Might be needing to use the product regularly now.

absolutely amazing product I used it in my 2010 safari the result is amazing one can feel the change in pickup engine noise reduce d

I used it on my 2012 fortuner for the first time since we had the car. Poured it on a full tank of petrol and the results were instantaneous good. The car ran smooth, diesel clutter has been reduced, the jerky throttle response was gone and the vibrations of the engine considerably reduced. I don't mind using it again for my other car as well.

Very good product. Recommend to everyone to use it.

Have been using it since 1 year (every 2-3000 kms) and it's really works. Pour the full bottle just before refueling diesel (full tank), so that it mixed well with fuel. Travelled for 50-100 kms on highway and the difference was very clear. Engine noise reduced, power regained (pickup was awesome) and it made the car more refined. Fully recommend it for all diesel vehicles (old or new). This product keeps the engine and related components in top working condition.