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Old 10th May 2024, 19:14   #6166
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Re: ARTICLE: Synthetic oil vs Mineral oil

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Originally Posted by revvharder View Post
Below is the oil chart provided by maruti, correct me if i am wrong, from what i could interpret is depending on the climate there should be no adverse issues if i use 5w30.
In typical Indian weather you can use 20w40 if you like. No issues.

Get that back ordered CNG filter, or see if it is there in the open market.
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Old 21st May 2024, 13:59   #6167
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Re: ARTICLE: Synthetic oil vs Mineral oil

Hi - I have a question regarding my duster 110 rxz (2012 model) engine oil. I need to get engine oil replaced and am confused what to go for.

While Renault service center recommends 15w40 mineral oil only, myTVS (where I'm giving my car for service) is recommending either castrol 5w30 mineral or castrol 0w20 synthetic.

I've always gone with castrol pro 15w40 basis renault service center recommendation in the past. Appreciate any advice I can get.
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Old 21st May 2024, 16:44   #6168
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Re: ARTICLE: Synthetic oil vs Mineral oil

My ignis with K12 engine was running on 0W20 Mobil MGO till the 30K service. I changed to Mobil1 0w30 fully synthetic. While the slightly thicker oil was good, smooth with no perceptible difference in mileage or power, there was a very mild increase in vibration at idle rpms. I could feel the vibes on the steering wheel. I switched back to 0W20 at 35K from Castrol edge and voila the vibrations vanished.

The opposite had happened with my brother in law's Celerio from 2017. It was running on 5W30 smoothly when we bought the vehicle from a friend. On looking at the manual which suggested 0W20, I switched over to Castrol edge 0W20 and there was perceptible decrease in engine smoothness and mileage also dropped. Switched back to 5W30 and the engine was back to its own self.
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Old 21st May 2024, 17:57   #6169
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Re: ARTICLE: Synthetic oil vs Mineral oil

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Originally Posted by majju View Post
Hi - I have a question regarding my duster 110 rxz (2012 model) engine oil. I need to get engine oil replaced and am confused what to go for.
If you are happy with your previous oil, keep using the same. I will not recommend w20 grade for a diesel engine that recommends using w40 grade. w30 is still manageable.

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My ignis with K12 engine was running on 0W20 Mobil MGO till the 30K service. I changed to Mobil1 0w30 fully synthetic. While the slightly thicker oil was good, smooth with no perceptible difference in mileage or power, there was a very mild increase in vibration at idle rpms. I could feel the vibes on the steering...
There are so many things at play when it comes to engine vibrations. Under regular usage, a w20 oil can become a w30 oil in some cars and the same oil can become a w16 oil in another. It all depends how the car was used and how much carbon etc it is accumulating. Usually, the oil thins down, however, I have seen gum coming out of the drain plug in some abused cars.

Have you experienced lowering of vibrations after let us say 7k kms usage of a w30? As it may actually have thinned down to w20 by then. The answer maybe no, as it could be just perception.

I will keep using w30 oil in my petrol Ciaz and play around only with the brands of oil to find the best one. The same is with my diesel Safari. I have never changed w40 spec, however, I have used some 10 different brands of oil, including API spec like CH4, CI4 etc. I know which one works best by now, but I may end up buying something else just to keep experimenting.

Hence, keep experimenting between brands, FS, SS, mineral etc and find what works best for you. Sometimes, the result my surprise you. Like for me, Servo Pride CH4 oil costing 3500/15L is the best till now and I least expected it. Actually, that was the last of all the oils I tested.
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Old 21st May 2024, 22:39   #6170
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Re: ARTICLE: Synthetic oil vs Mineral oil

Thanks. I had experimented with different oils in SWIFT ZDI that I owned earlier (mobil1, Shell helix ultra, Mobil MGDO, Shell HX7, Mobil Delvac MX, Gulf, Bosch, Wurths) and I liked Gulf mineral 15W40 the best. On the ignis, I changed the oil after 5K kms, when the vibes did not go away but the drained oil was definitely thinner. There was another ignis owner on this forum who shifted to 5W30 after trying 0W20 Mobil 1(fully synthetic) as was unhappy about it. For my ignis 0W20 seems to work the best and I have tried Mobil MGO 0W20 and Castrol Edge 0W20 with a oil change interval of 7500 kms.

Have been hearing different views on this forums and from knowledgeable FNG owners as well.

1) One view: Stick to manufactures specifications, lowering viscosity being recommended these days on account of lower tolerances between cylinder and piston versus the alternate view of it being the same engine and oils specifications are getting thinner to address the mileage conscious crowd. Differing feedbacks from People running 0W16s on older cars that came with 5W30/40 recommendations or cars running on 5W30, when the manual states 0W16.

2) Synthetic oils in India are basically petrol oils (at best CF specification when the manual says it should be CG/CH and above to have more detergents to clean the soot) and should never be used but seen Swift diesels running for 2 lakhs kilometers on Mobil1/Shell Helix ultra (CF rated) without any soot in the EGR.

Agree that a lot of factors at play and not just a question of viscosity, the SN/CF rating, brands.
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Old 22nd May 2024, 07:13   #6171
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Re: ARTICLE: Synthetic oil vs Mineral oil

Thanks. I'm definitely not unhappy with the existing 15w40. Was just hearing everyone recommend to switch to synthetic, and hence the query. Will try your advice of different brands and see what works best. Given it's a 11yr old car (130k+ km), a little more wary of experimenting too. Thanks again!
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Old 22nd May 2024, 11:58   #6172
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Re: ARTICLE: Synthetic oil vs Mineral oil

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Originally Posted by majju View Post
Thanks. I'm definitely not unhappy with the existing 15w40. Was just hearing everyone recommend to switch to synthetic, and hence the query. Will try your advice of different brands and see what works best. Given it's a 11yr old car (130k+ km), a little more wary of experimenting too. Thanks again!
You can find synthetic and semi synthetic 15w40 from Castrol, Valvoline, Mobil and many other brands. Or just get a good 5w40, the 40 weight is what comes into play anywhere in India
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Old 11th June 2024, 07:01   #6173
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Re: ARTICLE: Synthetic oil vs Mineral oil

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With DPF = BS6 car
Without DPF = BS4 car

0w20 C5 is not available cheap / inexpensive in the market, only full synthetic oils are available.
Sir, is it advisable to change cheaper oil frequently (shell helix 0w20 c5, 8k kms) or expensive oil once a year (Mannol Legend C5).

My annual usage is 20k +kms

MANNOL Legend Formula C5 0W-20 7921 Imported from Germany 5 Litre https://amzn.in/d/fZcKcNS cost ₹4100/-

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Old 11th June 2024, 07:17   #6174
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Re: ARTICLE: Synthetic oil vs Mineral oil

What you're getting sold as an expensive oil is expensive because of import duties. Mannol is a moderately priced and decent quality oil is all, in Germany.

Use Shell or even the default OEM oil (I guess you're using a newer Hyundai) and change every 8K km is just fine.

I do 30+ thousand km a year and I've found that using the OEM oil and changing every 8k km works just fine.

Quote:
Originally Posted by yadavsid21 View Post
Sir, is it advisable to change cheaper oil frequently (shell helix 0w20 c5, 8k kms) or expensive oil once a year (Mannol Legend C5).

My annual usage is 20k +kms

MANNOL Legend Formula C5 0W-20 7921 Imported from Germany 5 Litre https://amzn.in/d/fZcKcNS cost ₹4100/-

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