Accord Average drops with xtra premium !

delhi2009 · 31st March 2009, 02:47

HI All,

This sounds weird but the avg. of my Accord has dropped ever since i've tanked it up twice with xtra premium

.

Has this happened with anyone else here on the forums ? I've been filling from same pump since years and otherwise i was getting a regular avg. of 10.4 - 11.2 incity from Regular Petrol and now its 8.9 - 9.2 with xtra premium whereas i've been driving 70% on highways since last 2 top-ups !!!

Any ideas why this is happening ?

Thanks & Gold bless !

Raccoon · 31st March 2009, 13:02

Its most likely that the Xtrapremium was adulterated... rather than something being wrong with the Xtrapremium formulation itself.

Another possibility is that the dispenser for Xtrapremium dished out lesser volume of fuel.

Last possibility is that since you have been using only regular petrol till now, the premium fuel cleaned out stuff, etc... but not sure if this can lead to a drop in fuel efficiency.

runeet · 31st March 2009, 13:37

Actually what I think is that tweaked versions of petrol like xtra premium, power or speed, they are of a higher octane, so they give more power, but in the bargain u lose out on the fuel efficiency.
Atleast this hs been my observation on different vehicles like my civic, friends swift petrol and even my bike cbz-xtreme.

delhi2009 · 31st March 2009, 15:20

There's no chance of fuel being Adulterated as thats one of the best COCO (company owned, company operated) outlet in Delhi so it has to be something else. I always have used regular fuel on all my cars except my bike Karizma where i fill up Xtrapremium after 1st 500 KM and while it has been topped up thrice only due to low run, i did feel the change in sound, the better pickup with xtrapremium so not sure why it did'nt happen with Accord too.

Raccoon · 31st March 2009, 15:35

^^^Nopes, they are higher in octane. And even if they are, that cant reduce your fuel economy.

kingshukt · 31st March 2009, 17:06

I suggest that you try HPCL's Turbo.

HPCL are better with Premium Petrol and IOCL is better with Preminum Diesel fuels.

ImmortalZ · 31st March 2009, 20:29

Higher octane fuel can help your engine only if your car is designed to make use of it. Octane number is not a magical performance marker. It just tells you how prone the fuel is to self combustion. Higher octane numbers allow higher compression ratios and advanced timings which extract more power from the fuel.

If you put in Speed97 in a M800, you are not going to see any performance improvement at all. However, put it in an M3, which can use that fuel, and you know what happens.

I highly suggest you read the posts by Dr. Sumit Bhatti in the following threads and dispel any misconceptions you have about Premium Fuels and how they differ from company to company.

http://www.team-bhp.com/forum/indian...s-fill-up.html
http://www.team-bhp.com/forum/street...-stations.html
http://www.team-bhp.com/forum/techni...ty-diesel.html

Use the search function to get to his posts in each thread. They are very informative.

Raccoon · 31st March 2009, 20:48

Quote:

Originally Posted by Raccoon

^^^Nopes, they are higher in octane. And even if they are, that cant reduce your fuel economy.

Oops... sorry, I ment to say the are NOT higher in octane. Omitted the "not" by mistake.

Perakath · 31st March 2009, 21:55

Quote:

Originally Posted by runeet

Actually what I think is that tweaked versions of petrol like xtra premium, power or speed, they are of a higher octane

Quote:

Originally Posted by Raccoon

Oops... sorry, I ment to say the are NOT higher in octane. Omitted the "not" by mistake.

I read somewhere that IOC's XtraPremium has a higher octane rating than IOC's regular petrol, but that BP's Speed and HP's Power do not. Or perhaps it was the other way around. And I can't remember where I read it! Very helpful, I know!

Raccoon · 1st April 2009, 01:27

If the oil cos. are to be belived, all petrol is 91 octane. Speed 97 is of course the exception.

Atlblkz06 · 1st April 2009, 02:13

Quote:

Originally Posted by ImmortalZ

Higher octane fuel can help your engine only if your car is designed to make use of it. Octane number is not a magical performance marker. It just tells you how prone the fuel is to self combustion. Higher octane numbers allow higher compression ratios and advanced timings which extract more power from the fuel.

If you put in Speed97 in a M800, you are not going to see any performance improvement at all. However, put it in an M3, which can use that fuel, and you know what happens.

I highly suggest you read the posts by Dr. Sumit Bhatti in the following threads and dispel any misconceptions you have about Premium Fuels and how they differ from company to company.

http://www.team-bhp.com/forum/indian...s-fill-up.html
http://www.team-bhp.com/forum/street...-stations.html
http://www.team-bhp.com/forum/techni...ty-diesel.html

Use the search function to get to his posts in each thread. They are very informative.

That's the truth right there. High octane is a TOTAL WASTE in a car that's not meant for it. Furthermore your emissions might increase and your mileage can drop. However I don't think the drop is significant as the OP posts.

31st March 2009, 02:47	#1
delhi2009 BHPian Join Date: Oct 2008 Location: New Delhi Posts: 114 Thanked: 24 Times	Accord Average drops with xtra premium ! HI All, This sounds weird but the avg. of my Accord has dropped ever since i've tanked it up twice with xtra premium . Has this happened with anyone else here on the forums ? I've been filling from same pump since years and otherwise i was getting a regular avg. of 10.4 - 11.2 incity from Regular Petrol and now its 8.9 - 9.2 with xtra premium whereas i've been driving 70% on highways since last 2 top-ups !!! Any ideas why this is happening ? Thanks & Gold bless !
	() Thanks

31st March 2009, 13:02	#2
Raccoon Senior - BHPian Join Date: Jan 2008 Location: Poona Posts: 1,851 Thanked: 116 Times	Its most likely that the Xtrapremium was adulterated... rather than something being wrong with the Xtrapremium formulation itself. Another possibility is that the dispenser for Xtrapremium dished out lesser volume of fuel. Last possibility is that since you have been using only regular petrol till now, the premium fuel cleaned out stuff, etc... but not sure if this can lead to a drop in fuel efficiency.
	() Thanks

31st March 2009, 13:37	#3
runeet BHPian Join Date: Nov 2008 Location: Pune Posts: 43 Thanked: 0 Times	Actually what I think is that tweaked versions of petrol like xtra premium, power or speed, they are of a higher octane, so they give more power, but in the bargain u lose out on the fuel efficiency. Atleast this hs been my observation on different vehicles like my civic, friends swift petrol and even my bike cbz-xtreme.
	() Thanks

31st March 2009, 15:20	#4
delhi2009 BHPian Join Date: Oct 2008 Location: New Delhi Posts: 114 Thanked: 24 Times	There's no chance of fuel being Adulterated as thats one of the best COCO (company owned, company operated) outlet in Delhi so it has to be something else. I always have used regular fuel on all my cars except my bike Karizma where i fill up Xtrapremium after 1st 500 KM and while it has been topped up thrice only due to low run, i did feel the change in sound, the better pickup with xtrapremium so not sure why it did'nt happen with Accord too.
	() Thanks

31st March 2009, 15:35	#5
Raccoon Senior - BHPian Join Date: Jan 2008 Location: Poona Posts: 1,851 Thanked: 116 Times	^^^Nopes, they are higher in octane. And even if they are, that cant reduce your fuel economy.
	() Thanks

31st March 2009, 17:06	#6
kingshukt BHPian Join Date: Aug 2007 Location: Pune Posts: 450 Thanked: 10 Times	I suggest that you try HPCL's Turbo. HPCL are better with Premium Petrol and IOCL is better with Preminum Diesel fuels.
	() Thanks

31st March 2009, 20:29	#7
ImmortalZ Senior - BHPian Join Date: Jan 2008 Location: Trivandrum Posts: 2,195 Thanked: 601 Times View My Garage	Higher octane fuel can help your engine only if your car is designed to make use of it. Octane number is not a magical performance marker. It just tells you how prone the fuel is to self combustion. Higher octane numbers allow higher compression ratios and advanced timings which extract more power from the fuel. If you put in Speed97 in a M800, you are not going to see any performance improvement at all. However, put it in an M3, which can use that fuel, and you know what happens. I highly suggest you read the posts by Dr. Sumit Bhatti in the following threads and dispel any misconceptions you have about Premium Fuels and how they differ from company to company. http://www.team-bhp.com/forum/indian...s-fill-up.html http://www.team-bhp.com/forum/street...-stations.html http://www.team-bhp.com/forum/techni...ty-diesel.html Use the search function to get to his posts in each thread. They are very informative.
	() Thanks

1st April 2009, 01:27	#10
Raccoon Senior - BHPian Join Date: Jan 2008 Location: Poona Posts: 1,851 Thanked: 116 Times	If the oil cos. are to be belived, all petrol is 91 octane. Speed 97 is of course the exception.
	() Thanks