[hserus]

Originally Posted by Vikram Arya

does have a synthetic blend Rotella 15W-40 (primarily a diesel engine oil) in addition to some of the other majors. I believe some boutique manufacturers do have a full synthetic 15W-40.

Valvoline has a semi synthetic / synblend 15w40
https://www.amazon.in/Valvoline-All-.../dp/B01FCZ200A

[CarNerd]

Need suggestion for oil change on Elite i20 (2014 Petrol), Mobil 1 Advanced or Shell Helix Ultra 5W 40? Engine should be Smooth!

[hserus]

Originally Posted by CarNerd

Need suggestion for oil change on Elite i20 (2014 Petrol), Mobil 1 Advanced or Shell Helix Ultra 5W 40? Engine should be Smooth!

Neither. Try searching this very thread as the same question has been answered (quite often by me) multiple times. Or try searching the Hyundai customer care website / your car manual for what spec of oil you need. Put those car nerd skills to work.

[CarNerd]

Originally Posted by hserus

Neither. Try searching this very thread as the same question has been answered (quite often by me) multiple times. Or try searching the Hyundai customer care website / your car manual for what spec of oil you need. Put those car nerd skills to work.

I know the grade/spec of oil, I was asking about the better brand out of Mobil and Shell in terms of smoothness.

[hserus]

Originally Posted by CarNerd

I know the grade/spec of oil, I was asking about the better brand out of Mobil and Shell in terms of smoothness.

You will see that they specify a 5w30 and you’re asking about 5w40 oils. So please check what brand suits your budget and tastes and go ahead. For such old fashioned and relatively simple engines they will run well with even cooking oil.

[CarNerd]

Originally Posted by hserus

You will see that they specify a 5w30 and you’re asking about 5w40 oils.

The manual doesn't say not to use 5W-40 oil. It suggests to choose oil according to the range of vehicle operating temperature by selecting the recommended viscosity from chart. See the attached image from the manual.

Originally Posted by hserus

For such old fashioned and relatively simple engines they will run well with even cooking oil.

So which one do you suggest? Saffola or Sundrop?

[Kosfactor]

Originally Posted by CarNerd

The manual doesn't say not to use 5W-40 oil. It suggests to choose oil according to the range of vehicle operating temperature by selecting the recommended viscosity from chart. See the attached image from the manual.

As far as I remember this engine has dual VVT, so use their recommended oil grade which is 5W30 nominal with A5 \ B5 spec as mentioned. You maybe able to get the correct engine oil that meets the spec for cheap from Hyundai itself.

This engine is very quiet and refined, the noise insulation in Elite is excellent, if this engine feels noisy to you, it should be a cause for concern and that is probably not the engine oil.

[Rshrey22]

Originally Posted by CarNerd

Need suggestion for oil change on Elite i20 (2014 Petrol), Mobil 1 Advanced or Shell Helix Ultra 5W 40? Engine should be Smooth!

Try this oil, it has given me good results in 1.2 K Series VVT (Dzire VXI) . The name of the oil is Mobil 1 FS-X2.

[hserus]

Originally Posted by Rshrey22

Try this oil, it has given me good results in 1.2 K Series VVT (Dzire VXI) . The name of the oil is Mobil 1 FS-X2.

Not an A5B5 spec oil, that is A3B4. And 5W40.

Actually try any good third party brand of 5w30 A5B5, should be better than the Servo CRDI oil Hyundai uses.

[CarNerd]

Originally Posted by hserus

Not an A5B5 spec oil, that is A3B4. And 5W40.

If the engine can run even on cooking oil, can't it run on 5W-40?

These are some of the ACEA specifications:

A - Petrol, B - Diesel, HTHS - High-Temperature High-Shear Viscosity, mPas - millipascal-second.

A3/B4 and A5/B5 are similar at lower temperatures but at higher temperatures A3/B4 outperforms A5/B5 due to higher viscosity (thicker) and provides better protection. But A5/B5 has better fuel economy as it's thinner. So using 5W-40 instead of 5W-30 is not an issue.

[hserus]

Originally Posted by CarNerd

.A3/B4 and A5/B5 are similar at lower temperatures but at higher temperatures A3/B4 outperforms A5/B5 due to higher viscosity (thicker) and provides better protection. But A5/B5 has better fuel economy as it's thinner. So using 5W-40 instead of 5W-30 is not an issue.

Not outside temperatures engines operate at far higher temperature than the weather conditions.

There are a few other things related to HTHS TBN etc where some a5b5 may be formulated far less than a a3b4

If you do want an a3b4 5w30 try my usual recommendation throughout this thread Shell HX8 5w30 or Shell Helix Taxi 5w30 (semi synthetic but very good). Both rated SN+ these days so they’re going to be decent for GDI turbo petrols as well.

[Swapnil4585]

My car's engine oil capacity is 4.2 liters. During my last refill I put only 4 liters. Will this cause any trouble to the piston rings?

[Kosfactor]

Originally Posted by Swapnil4585

My car's engine oil capacity is 4.2 liters. During my last refill I put only 4 liters. Will this cause any trouble to the piston rings?

There will be some left over oil of the previous fill always , check the oil level in the morning before starting the vehicle, if it's less than half mark - add , else leave it alone and check next month.

[Swapnil4585]

Originally Posted by Kosfactor

There will be some left over oil of the previous fill always , check the oil level in the morning before starting the vehicle, if it's less than half mark - add , else leave it alone and check next month.

Oil level has not decreased. It is constant at 4 liters. Just that the additional 200 ml of the same oil is difficult to source so I did not bother to add it.

[hserus]

Originally Posted by Swapnil4585

Oil level has not decreased. It is constant at 4 liters. Just that the additional 200 ml of the same oil is difficult to source so I did not bother to add it.

Should be fine, don’t worry.