Q. Is there any proof that additives helps engine performance ? As per shell hexix website (engine oil used by Hyundai) it should not be used Hyundai service centre can also ask you to pay for greasing and for exactly 50 gm grease they will ask for 450 +tax They will also charge 140+tax for egr cleaning They will also force you to change coolant and gear oil at 50k service even if it is not required. I have just taken my vehicle back from them without getting serviced even under warranty. - Xcent?

Hyundai is one of the worst brand i have been ever gone for! I have got hyundai xcent CRDI TOP END MODEL in the month of Feb-2018, initially i felt that the car is awesome but in the 15th month from the date i bought the car, the engine of the car is failed and when i inquired for the cost of repairing the same, i have been given the quotation of 1,30,000 and as i bought it for TAXI Purpose they said that the warranty couldn't be claimed after 40,000 Kms; Whereas my vechile has driven for 62,000 Kms., but after getting every service on time at certified service center of Talwar Hyundai, the engine is failed within just 15 months, this explain the quality of Hyundai Vehicle/motors

Related to maintenance, which every owner has to pay more less

You can use Synthetic engine oil for smooth performance...