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Old 16th October 2015, 18:32   #31
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Default Re: BS-4 fuel lubricity and effect on engine life

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Originally Posted by freedom View Post
Is there any other 91+ RON fuel apart from Speed 97? "HP Power" and "Speed" are just normal Petrol with additives.

Is BS3 fuel lesser than 91 RON?
BS2 was 88 RON
BS3 was 91 RON.
All the consequent BS (4/5/6) are 91 RON only.

Bharat Standards or Euro standard (or any other standardsinthe world) are about reducing the sulfur emission mainly. Hence each stage decreased the allowable sulfur content in the fuel.

Feeding an engine with higher octane number than the one that is required doesn't really affect (contrary to whatever placebo one experiences). The same goes for cetane number (applicable to high speed diesel)

I have no idea who all sell higher octane number petrol in India.
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Old 16th October 2015, 20:25   #32
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Originally Posted by alpha1 View Post
BS2 was 88 RON
BS3 was 91 RON.
All the consequent BS (4/5/6) are 91 RON only.

Feeding an engine with higher octane number than the one that is required doesn't really affect (contrary to whatever placebo one experiences). The same goes for cetane number (applicable to high speed diesel)

Polo TSI needs 91 as minimum RON and 95 is optimal. So in this case putting in 95 over 91 will definitely help.
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Old 19th October 2015, 14:42   #33
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Default Re: BS-4 fuel lubricity and effect on engine life

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Polo TSI needs 91 as minimum RON and 95 is optimal. So in this case putting in 95 over 91 will definitely help.
Is this mentioned in the User manual?
What benefits are mentioned in the manual by filling RON 95 vs RON 91?
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Old 19th October 2015, 14:46   #34
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Default Re: BS-4 fuel lubricity and effect on engine life

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Originally Posted by alpha1 View Post
Is this mentioned in the User manual?
What benefits are mentioned in the manual by filling RON 95 vs RON 91?
It should be there in the manual, I will check.

But its clearly written on the fuel tank lid
http://www.team-bhp.com/forum/test-d...ml#post3823430
It says 91 is minimum and 95 as default.

Since it has high compression ratio, I would like to believe that at-least in this case, a 95 fuel would be better than 91. Especially for highway driving/twisties etc.
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Old 19th October 2015, 16:53   #35
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Default Re: BS-4 fuel lubricity and effect on engine life

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Originally Posted by freedom View Post
Polo TSI needs 91 as minimum RON and 95 is optimal. So in this case putting in 95 over 91 will definitely help.
Ye, 95RON should be the Premium grade. May be ₹2-3 per litre costlier. let this be the premium rather than normal petrol with additives.
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Old 1st February 2016, 20:03   #36
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Default Re: BS-4 fuel lubricity and effect on engine life

As per the Shell page below, some of their outlets in Bangalore sell BS3 fuel, instead of BS4.

Now from the limited research I've done online, I've read that BS4 has a lower sulfur content, which leads to lower lubricity & lower fuel economy. And higher emissions, of course.

Should I stick to Shell BS3 (hopefully less adulterated than HP/IOC) or switch to HP/IOC?
Do all other petrol bunks dispense BS4 diesel? Are there other Shells which dispense BS4 diesel?

I have a Figo Aspire with the 1.5TDCi.

http://www.shell.in/products-service...ing-board.html
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Old 2nd February 2016, 14:15   #37
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Default Re: BS-4 fuel lubricity and effect on engine life

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Originally Posted by d3mon View Post
Do all other petrol bunks dispense BS4 diesel? Are there other Shells which dispense BS4 diesel?
IOC COCO outlets are shifting to BSIV. Check ones that are in heart of the city. Albeit they are releasing by April 1,2016.

Last edited by prithm : 2nd February 2016 at 14:18.
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Old 2nd February 2016, 15:07   #38
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Default Re: BS-4 fuel lubricity and effect on engine life

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As per the Shell page below, some of their outlets in Bangalore sell BS3 fuel, instead of BS4.
I am sure they must be talking about Bangalore district.
They can't sell BS3 fuel in Bangalore. That would be illegal.
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Old 2nd February 2016, 17:36   #39
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Default Re: BS-4 fuel lubricity and effect on engine life

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Originally Posted by d3mon View Post
As per the Shell page below, some of their outlets in Bangalore sell BS3 fuel, instead of BS4.

Do all other petrol bunks dispense BS4 diesel? Are there other Shells which dispense BS4 diesel?
Quote:
Originally Posted by alpha1 View Post
They can't sell BS3 fuel in Bangalore. That would be illegal.
The difference is due to categorization of certain places as 'outside Bangalore'. For example, I guess Shell on Varathur road sells BS3, that is because Varathur officially comes outside Bangalore. Due to this BS4 rule is not applicable to bunks operating there.

d3mon: I am not sure which area you are located in Bangalore. However, you can check this link to get info about any other reliable bunks which sells BS4 fuel. Link (Trusted Petrol Pumps in Bangalore)
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Old 3rd February 2016, 11:13   #40
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Default Re: BS-4 fuel lubricity and effect on engine life

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I am sure they must be talking about Bangalore district.
They can't sell BS3 fuel in Bangalore. That would be illegal.
Why is this illegal if I may ask ?

BS4 is still proposed to be launched by 1 April 2016 by IOC, are other players already way ahead ?
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Old 8th February 2016, 11:29   #41
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Default Re: BS-4 fuel lubricity and effect on engine life

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Why is this illegal if I may ask ?

BS4 is still proposed to be launched by 1 April 2016 by IOC, are other players already way ahead ?
Bangalore (and about 10-15 other prominent cities) has been on BS4 since 2010!

It is illegal to sell BS3 fuel in Bangalore metropolitan city.

What you are reading of these days is the rest of India also moving to BS4 (which is on high sulfur BS3 since 2010).

Remember our country is being run by the inefficient (Govt) for the inefficient (PSU). This staggering was done to ensure that PSU refiners do not suddenly land up being unable to sell their ordure (high sulfur BS3 fuel).
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