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  1. keshav
  2. Service & Maintenance
  3. Saturday, July 27 2019
i have bought "Bosch Synthup API SN/CF SAE 5W 40 Fully Synthetic Engine Oil for Passenger Cars " for my Hyundai CRDi 1.6 Creta...! as per Bosch its advisable but Hyundai recommends 15W -40...! can anyone help me with technical advice whether to go ahead with purchase or not..?
Admin Accepted Answer

Hyundai India recommends API CH 4 - SAE 15W/40 Engine Oil in Creta pre facelift Model
In new Facelift edition - its ACEA A3/B4 - SAE 5W/30 Engine Oil been recommended

As your car seems to be pre Facelift Model well 5W/40 is a thinner engine oil as against 15W-40
While the thickness of oil (5W-40) on maximum operating temperature remains same as what 15W-40 is
But the oil is thin at 5W for free flow as against relative thick oil 15W recommended

Although thin oil has many advantages like reduce friction in engines, easy one start on cold freezing weather too including free flow and easier to move, but the slight thicker oil can help protect engine bearings and engine sealing especially when car gets older, Having said same, although one may use in 5W-40 but it is recommended to follow in as what advised by manufacturer for best protection to car engine as they generally recommend oil grade after thorough R&D

Hope should help !!

  1. more than a month ago
  2. Service & Maintenance
  3. # 1
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