Octane You Use??

[Kim]

just to clarify the grade of fuel which is used by the users of our site

Edited September 1, 2008 by Kim

[Kim]

  Arc Angel said:

an evo iii

OH! sir. . .

[Arc Angel]

  Kim said:

OH! sir. . .

lol

machan is it your GT that I see parked on the lane adjoining MC?

[Kim]

  Arc Angel said:

lol

machan is it your GT that I see parked on the lane adjoining MC?

immm, not a lane adjoining MC, but a lane adjoining Vogue jewelers

[Arc Angel]

  Kim said:

immm, not a lane adjoining MC, but a lane adjoining Vogue jewelers

i see. ela ela.

[Kim]

so i guess i will have to pump 95OCT for the VVT-i, looking at the responses so far..

Edited September 3, 2008 by Kim

[Elvis_Pil]

i think I fall into the 'other' category as well

[Kim]

  Elvis_Pil said:

i think I fall into the 'other' category as well

Mixed ?

[miniace]

  Kim said:

Mixed ?

He he LPG

[Kim]

  miniace said:

He he LPG

nah, i don't think so..pila wont pump gas 2 his car, would he ?

Edited September 3, 2008 by Kim

[Elvis_Pil]

Home brew. Ala 'Chemical Ali' ))

[nira74]

Has anyone tried out the Premium Fuel offered by IOC ?

Fuel Station guys said that it's Octain rating is lower than 95 but it has some additives added and also does not have the Dye which is in the std 95 octain petrol. Cost is 160 bucks per litre and a lot of the Petrol SUV guys are pumping it now.

I'm trying my first tank right now - only done about 60km so far so can't comment yet. One thing I noticed is that there is no noticable performance drop or pinking like you get when you switch from 95 to 90.

[GihanFX]

  nira74 said:

Has anyone tried out the Premium Fuel offered by IOC ?

Fuel Station guys said that it's Octain rating is lower than 95 but it has some additives added and also does not have the Dye which is in the std 95 octain petrol. Cost is 160 bucks per litre and a lot of the Petrol SUV guys are pumping it now.

I'm trying my first tank right now - only done about 60km so far so can't comment yet. One thing I noticed is that there is no noticable performance drop or pinking like you get when you switch from 95 to 90.

yeah i have tryied it several times, its almost like 95oct but to pump premium i need to go to the shead next to Rathmalna Air port, so i pump that when i only goin that way

[AMG]

  GihanFX said:

yeah i have tryied it several times, its almost like 95oct but to pump premium i need to go to the shead next to Rathmalna Air port, so i pump that when i only goin that way

With my personal experience the IOC Xtra premium sounds more like 90 octane fuel on the both performance and the mileage.

It is actually 91 octane with friction buster. (some detergent to clean the engine)

Edited March 6, 2009 by Bharath

[Elvis_Pil]

the Xtra premium sucks big time in terms of performance. However it does run smooth enough to prevent engine knock which you normally get when you pump 90 in a vehicle that needs 95. So I would say that its a decent alternative to 95 in things like SUV's and non sporty cars which dont rev as high as sportier models.

[isam]

I pump 95Oct. What I have noticed is that it gives a bit lesser mileage and leaves the thin brown layer on the spark plugs, but gives better performance than 90Oct. With 95 Oct there is no engine knocking.

[jehan80]

  isam said:

I pump 95Oct. What I have noticed is that it gives a bit lesser mileage and leaves the thin brown layer on the spark plugs, but gives better performance than 90Oct. With 95 Oct there is no engine knocking.

Newbie question here. What exactly is engine knocking?

[shanX]

90 OCT - Better fuel economy, stable, easier to drive around

95 OCT - Better performance, lesser power on low RPMs, have to keep revving

Is this because of ignition timing or something? (D15B Vtec)

[madjay]

I used to pump 95 for my Cynos (A\T) when the price gap was small. (Rs3.00 as I remember )

95 clearly gave me better performance.

[Mani]

  miniace said:

Well.... 95 when you have money ,90 when you dont !!!

MINIACE

[madjay]

hmmm Guys, btw some people say mixing both 90 and 95 time to time is not a good thing for the engine which I had to do a couple of times. Is there any truth?

You know... when you go outstations its hard or some times impossible to find 95.

[Kim]

Hmmm..as i have told a long time back in a earlier page, now the difference is not 3, not 13, but '18' having read it once again from d beginning me gonna take Elvis_Pil's advice. any update on the same?

well for 'd GT lik or not that will be 95OCT, lets try d Premium for d Allion. will share d results, feeling it a so waste to spend this much for the difference, when d Aliz spec says that regular fuel will do.

Edited July 7, 2009 by Kim

[SeanD]

A friend's company E280 was recommended 90 Oct by D*MO when it was bought 2 years ago. Donno the reason behind it, but it has run without a day's illness and with about as good mileage as you can expect for that car.

And didn't someone post a study that showed our 95 Octane is actually different to the US or Western spec and is actually something like 89?

[ravisam]

  isam said:

I pump 95Oct. What I have noticed is that it gives a bit lesser mileage and leaves the thin brown layer on the spark plugs, but gives better performance than 90Oct. With 95 Oct there is no engine knocking.

The difference according to my knowledge is this. you have to refer to your vehicle manufacturer specification. If your manufacturer recommends to use oct 90, then you can use both oct 90 & 95. But if recommends to use oct 95 you can not use oct 90 and it will create knock. I can remember sometime back Honda Civic manufacturer made a paper adverticement saying that if local fuel is used the vehicle may not give good performance because local fuel contain lesser Octane against specified. (At the period only one type of petrol was available).

further,

If your engine compression ratio is higher you have to use higher octane.

Petrol with higher octane percentage means higher anti knocking properties.

Manufacturer specification availble in vehicle Service Manual

[ravisam]

  isam said:

I pump 95Oct. What I have noticed is that it gives a bit lesser mileage and leaves the thin brown layer on the spark plugs, but gives better performance than 90Oct. With 95 Oct there is no engine knocking.

The difference according to my knowledge is this. you have to refer to your vehicle manufacturer specification. If your manufacturer recommends to use oct 90, then you can use both oct 90 & 95. But if recommends to use oct 95 you can not use oct 90 and it will create knock. I can remember sometime back Honda Civic manufacturer made a paper adverticement saying that if local fuel is used the vehicle may not give good performance because local fuel contain lesser Octane against specified. (At the period only one type of petrol was available).

further,

If your engine compression ratio is higher you have to use higher octane.

Petrol with higher octane percentage means higher anti knocking properties.

Manufacturer specification availble in vehicle Service Manual

[GihanFX]

if my calculations are corect past few weeks i ran 99.4 oct