Liqui Moly 3721 Liqui Moly Ceratec Ceramic Engine Oil Additive Synthetic Blend Engine Oil  (0.3 L, Pack of 1)

Try it once and u will be addicted

Have used it, in my dzire diesel 2008 model. It's more than 8000kms with if. The engine is relatively smooth. The noise has reduced a bit. Overall it's a good product.

One of the best additive for engine oil. Once you use it, you will at once observe that the engine and transmissiin become quite silent and very smooth. You will especially notice and feel it when the vehicle is in motion. Definetly does what it claims. I have been using this since last one year in all my 4 vehicles, which by the way are all diesel engine ones. Especially good if you drive for long distances, drive at high speed or drive in traffic jam situations. Although, I cannot confirm i...