[Raj_RD]

Thanks for all the inputs! Will buy 0w20 fully synthetic from outside. Seems like only mobil super and castrol magnatec is widely available in Calcutta. The other option is Shell HX8 5w30.

[hserus]

Originally Posted by Raj_RD

Thanks for all the inputs! Will buy 0w20 fully synthetic from outside. Seems like only mobil super and castrol magnatec is widely available in Calcutta. The other option is Shell HX8 5w30.

If your car is a bs6 (which seems to be the usual use case for 0w20 oils) don't use HX8, use Shell's ultra ect 0w20 or 0w30 that comes in brown plastic jugs. Very expensive, high grade full synthetic.

You can buy all these and more on Amazon, make sure that Cloudtail is the seller or it is fulfilled by Amazon.

[venkyhere]

Originally Posted by hserus

Even more than tbn there are kinematic viscosity, pour point .. and especially for high torque diesels, HTHS

UNderstood. Yes there are many parameters. TBN and VI are the numbers I crudely look at.
Which parameter were you referring to, when you said 'thicker 30' in your original post ? Because the answer is not clear to me.

[hserus]

Originally Posted by venkyhere

UNderstood. Yes there are many parameters. TBN and VI are the numbers I crudely look at.
Which parameter were you referring to, when you said 'thicker 30' in your original post ? Because the answer is not clear to me.

Kinematic viscosity and hths

[R2D2]

Originally Posted by hserus

5w50 is recommended for some cars with high performance engines that also go on the track a lot, like the Mustang for instance.

Yes, but xW-50 was one of the recommended grades for the 1ZZ-FE other than xW-40 and xW-30.

Originally Posted by Swapnil4585

Coming back to the Altis, what I have observed is that while changing the old Shell oil, the oil did not look dark brown. While the Amsoil that I will change now, does look darkish brown. The Shells were 5-40 & Signature is 5-30. Hence my query.

Amsoil does a good job of keeping the engine clean but by no means is Helix Ultra a bad oil in fact it's very good but Amsoil just feels better. An oil turning dark is just what it indicates cleaning and trapping impurities resulting from combustion of fuel, blow by gases, water condensation etc. Those resulting in the color changing. The filter does the job of removing these impurities from the oil and recirculating the cleaned oil back to the engine for lubing.

Amsoil has been my default oil for many years now.

[yadavsid21]

Originally Posted by hserus

If your car is a bs6 (which seems to be the usual use case for 0w20 oils) don't use HX8, use Shell's ultra ect 0w20 or 0w30 that comes in brown plastic jugs. Very expensive, high grade full synthetic.

You can buy all these and more on Amazon, make sure that Cloudtail is the seller or it is fulfilled by Amazon.

I am not able to find 0w20 ACEA C5 for my Seltos 1.5CRDI BS6.
There are few 0w20 fully synth but with API SP - ILSAC GF 6A specs.

[hserus]

Originally Posted by yadavsid21

I am not able to find 0w20 ACEA C5 for my Seltos 1.5CRDI BS6.
There are few 0w20 fully synth but with API SP - ILSAC GF 6A specs.

You can certainly use an acea c3 or even a 5w30 / 10w30 api ck4

The 0w20 is solely for fuel economy but use this Mobil and see - fantastic oil but expensive

https://www.mobil.co.in/en-in/our-pr.../mobil-1-0w-20

The kia oil is going to be a lot cheaper and because it’s a c5 it will be robust and well formulated despite being semi synthetic

[Swapnil4585]

Originally Posted by R2D2

Amsoil does a good job of keeping the engine clean but by no means is Helix Ultra a bad oil in fact it's very good but Amsoil just feels better. An oil turning dark is just what it indicates cleaning and trapping impurities resulting from combustion of fuel, blow by gases, water condensation etc. Those resulting in the color changing. The filter does the job of removing these impurities from the oil and recirculating the cleaned oil back to the engine for lubing.

Amsoil has been my default oil for many years now.

Thanks. I ordered it from their Pune distributor directly instead of going the longer Amazon way.

[sumeethaldankar]

Originally Posted by sumeethaldankar

Posting here since this is a more active thread related to oils..

I went to my FNG and got this oil filled in my car. The engine now definitely feels more lively and the car feel eager to just move forward. In fact I feel I have to restrain the car from speeding ahead as I have been used to the sluggish response owing to the 0W40 crap poured in by MASS. I can't believe how the right engine oil can make so much of a difference. My MASS was filling the car with the thicker 40 grade oil all this while making the car a bit lethargic post 2k RPM mark.

[JMaruru]

Originally Posted by R2D2

Amsoil does a good job of keeping the engine clean but by no means is Helix Ultra a bad oil in fact it's very good but Amsoil just feels better. Amsoil has been my default oil for many years now.

Could you please suggest a Amsoil engine oil for our 2009 Swift VDi(DDIS engine)?

[MT_Hyderabad]

Originally Posted by sumeethaldankar

I went to my FNG and got this oil filled in my car. The engine now definitely feels more lively and the car feel eager to just move forward. In fact I feel I have to restrain the car from speeding ahead as I have been used to the sluggish response owing to the 0W40 crap poured in by MASS. I can't believe how the right engine oil can make so much of a difference. My MASS was filling the car with the thicker 40 grade oil all this while making the car a bit lethargic post 2k RPM mark.

My car has the same engine. W40 is too thick. I used Mobil X1 3000 5w30 and it worked well. Now, I am using Bosch Fusion 5w30, it is also doing fine. Next time I will try something from Gulf.

The unstobbale feeling with low viscosity and low friction oils lasts only a few hundred kilometers, then it is back to normal. The real deal is the duration. While normal ones lasts 6 to 7000 kms before harshness sets in, FS lasts 9000 kms or so in my car.

[Gansan]

Originally Posted by sumeethaldankar

I have been used to the sluggish response owing to the 0W40 crap poured in by MASS.

0W40 is not "crap"! It is a full synthetic oil and the only brand MASS workshops usually keep is Mobil 1. I regularly let them fill it for my 2009 Alto and I pay Rs 2750 for 2.75 litres. The oil is excellent for an annual change and keeps the engine lively, smooth and clean for the duration.

It is just not suited for your model of Swift which requires a 0W20 oil. It was wrong on the part of the workshop people to fill it and yours to allow it! Always stick to the oil spec recommended by the car manufacturer.

[sumeethaldankar]

Originally Posted by MT_Hyderabad

The unstobbale feeling with low viscosity and low friction oils lasts only a few hundred kilometers, then it is back to normal. The real deal is the duration. While normal ones lasts 6 to 7000 kms before harshness sets in, FS lasts 9000 kms or so in my car.

The car when it was factory filled with Synthetic oil was lively to drive till 9.8k kms post which MASS filled their 0W40 oil. So I guess if the quality of oil is good then it should last the entire 10k mark.

Originally Posted by Gansan

0W40 is not "crap"! It is a full synthetic oil and the only brand MASS workshops usually keep is Mobil 1......

Dear Gansan the 0W40 retails at 3.5k for 3.2 litres used for my Swift and in just 10 months and in less than ~4k kms the engine felt tired and begged for an oil change. So for me it is not worth the money I paid.

Originally Posted by Gansan

It was wrong on the part of the workshop people to fill it and yours to allow it! Always stick to the oil spec recommended by the car manufacturer.

This 40 weight oil is a pandemic which has infected many MASS dealerships. In another thread of this site there have been cases reported where a car's engine which was meant to have 0W16 filled had 0W40 oil poured in. It seems MASS has a one size fits all oil.

As far me allowing it, I had mailed Maruti about same, they asked the dealer to reach out to me which did not help the case. I asked my SA about it and they said it is supplied by Maruti (I doubt) and is used in all cars. I gave the same information in the feedback call which is done by Maruti Suzuki nothing happened about it. I could have changed dealerships but my past experience with other dealers/MASS garages has not been great so have stuck with the current setup.

Peace.

[Gansan]

^^ Engines should be filled with correct grade of oil. What you filled was not suitable for your engine, and even might have caused some damage/premature wear. Maruti has changed oil specs for their engines over the years as newer and newer engine models were introduced for same car model. My Alto requires 20W40 which is not available any more, so I ensure I fill a 40 upper weight oil and not bother about the lower number. 0W40,5W40,10W40 are all fine for me. In our climate within 20-30 minutes of operation the oil will reach the higher value.

Current Alto model requires 0W20, maybe even 0W16. What MASS people do is they fill the same oil for 2009 Altos too and say it is fine. But it is not. Some knowledgeabe SAs will fill 5W30 for older engines, which is somewhat okay, but they are a scarce breed.

So I used to buy 40 weight synthetic oil from outside and give them for filling. They used to fill it with a remark on the job card "oil supplied by customer". But for the past few years they refuse to accept the oil and insist it should be filled at the workshop. The only 40 weight oil they have is Mobil 1 0W40, so I let them fill it. Because it is an excellent oil, the engine sings along till the next change. It is good for more than 10k KM actually, but I change it in 12 months even though the distance covered will be less.

The phenomenon of rough engine occurred to you because of the wrong spec - double the required viscocity. Which is bad for the engine. What do you think will happen if I fill the best 0W20 oil in my engine? Will it be smooth for the next year or 10k km?

[sumeethaldankar]

Originally Posted by Gansan

^^ Engines should be filled with correct grade of oil.

Dear sir let me be clear. I did not fill the oil. MASS did. Lets get that straight. I have corrected what wrong MASS has done. So please point the finger to MASS and not me. As I said before "peace".