Hi, I have used Motul Engine Oil 5100 4T 10W30( Semi Synthetic) on my Splendour pro .( 10,000 Kms Run) .The Engine noise reduced considerably.Gear shift was smooth.Easy acceleration. Need to check the Mileage .It Costs around Rs 500 for 1 litre .Need to purchase from authorised dealers as a lot of Fake oil products are available under this name.