[keroo1099]

Originally Posted by itwasntme

Which pumps consistently stock Power99 in BLR?

HP pump near the junction of Wind Tunnel road and Old Airport road. 97 octane is available at Nagpals bunk (BP) on Residency road.

[itwasntme]

Originally Posted by keroo1099

HP pump near the junction of Wind Tunnel road and Old Airport road. 97 octane is available at Nagpals bunk (BP) on Residency road.

Nagpals had no stock last week and were unsure of next delivery. Looks like old Airport Road is the only option now!

[keroo1099]

Originally Posted by itwasntme

Nagpals had no stock last week and were unsure of next delivery. Looks like old Airport Road is the only option now!

They received 6000L yesterday. I filled up my Jet.

[itwasntme]

Originally Posted by keroo1099

They received 6000L yesterday. I filled up my Jet.

! Will be making a beeline this weekend once I am back in town.

Have a few questions for you:
1. Is there any appreciable difference in your Jet in either city and highway driving between normal petrol and these high octane fuels?
2. Does the difference show up immediately or the does the ECU need a couple of tank-fulls to 'learn' the change?
3. Is it necessary to fill up on an empty tank or can I mix it with (say) 10 liters of normal?
4. Is the mileage better on high octane?
5. Any perceptible performance differences between Speed97 and Power99?
6. How much was the per liter cost when you filled up?

Apologies, too many questions - stuck in a massive jam on the WEH, Mumbai so all the time in the world

[Santoshbhat]

Originally Posted by itwasntme

Nagpals had no stock last week and were unsure of next delivery. Looks like old Airport Road is the only option now!

Originally Posted by keroo1099

They received 6000L yesterday. I filled up my Jet.

Guys, any of you tried STP Octane booster? I have been using it over past few months for my GTI and must say it makes a difference.

My experience so far :
Speed 97 - Best results
Power 99 - Good results, but felt 97 gave better results.
Normal 91 especially from PSU - Car feels noticeably sluggish. Also the exhaust note is very different (silent and less boomy). Same is true even with Shell/ Essar normal unleaded. But PSU is worst.
Normal fuel (Essar/ Reliance) + STP Octane booster - About 75% as good as Speed 97. I also get that good exhaust note with this.

So I now carry a bottle in my car and whenever I am out of town with no access to Speed 97/ Power 99, I head to the nearest Reliance outlet and tank up after adding the additive.

[zebo]

Originally Posted by itwasntme

Which pumps consistently stock Power99 in BLR?

HP on HAL road, next to manipal hospital signal. This is the only pump for 99, and they have had it all the times I have been there in the last 14 months.

There are other pumps serving 97 octane, which could be a second choice over regular petrol.

[itwasntme]

Originally Posted by Santoshbhat

My experience so far :
Speed 97 - Best results
Power 99 - Good results, but felt 97 gave better results.
Normal 91 especially from PSU - Car feels noticeably sluggish. Also the exhaust note is very different (silent and less boomy). Same is true even with Shell/ Essar normal unleaded. But PSU is worst.
Normal fuel (Essar/ Reliance) + STP Octane booster - About 75% as good as Speed 97. I also get that good exhaust note with this.

Santosh, are you also jobless and stuck in the same WEH jam near Goregaon (just joking!)

Thanks for the great comparo but I always thought VAG recommends no octane boosters at all for their IN cars? Can I try this on my RON91/RON95 Octy or are these better suited to your RON95/RON98 GTI
& vRS engines?

[Santoshbhat]

Originally Posted by itwasntme

Santosh, are you also jobless and stuck in the same WEH jam near Goregaon (just joking!)

Thanks for the great comparo but I always thought VAG recommends no octane boosters at all for their IN cars? Can I try this on my RON91/RON95 Octy or are these better suited to your RON95/RON98 GTI
& vRS engines?

I am right behind you.

Yes, they say no additives since they want to play safe. When you allow people to add additives, you lose control over what stuff people put in their cars.

Speed 97 and Power 99 are nothing but normal fuel with additives. A chemical concoction that boosts the octane rating. They also contain cleansing agents that will help keep injectors clean, which again is crucial for direct injection engines for good long term health.

[theredliner]

Originally Posted by Santoshbhat

Guys, any of you tried STP Octane booster? I have been using it over past few months for my GTI and must say it makes a difference.

I have been using it since over a year. The T-Jet feels noticeably happier with STP octane booster. I was using it with every tank with regular COCO fuel. These days I use it alternate tankfulls. It was STP that made me stop going to Manipal hospital HP pump and get ripped off @20Rs. premium per litre. I had once added STP after a tank full of Power 99. The T-Jet went really crazy in a good way during the drive back home on a cold winter night in Wolfmoto map 3 (tuner claimed 150BHP, 240Nm map for 93 RON fuel).

[keroo1099]

Originally Posted by itwasntme

! Will be making a beeline this weekend once I am back in town.

Have a few questions for you:
Apologies, too many questions - stuck in a massive jam on the WEH, Mumbai so all the time in the world

No sweat, I too was twiddling my thumbs on OMR when I replied. My car is Remapped (Wolf) and I run it on Map2 so all answers are with that in mind.

1. Is there any appreciable difference in your Jet in either city and highway driving between normal petrol and these high octane fuels?

Noticeable difference to bottom end torque for city driving. The engine just sounds happier with 97 and it runs smoother. On the highway the midrange is stronger and I rarely have to shift lower than 4th when stuck behind slower traffic. Top end probably pulls a little more but have rarely needed to use anything past 4K

2. Does the difference show up immediately or the does the ECU need a couple of tank-fulls to 'learn' the change?

Immediate difference. This time I filled up with about a 1/4 tank of normal and noticed the change as I pulled out of the bunk

3. Is it necessary to fill up on an empty tank or can I mix it with (say) 10 liters of normal?

see above

4. Is the mileage better on high octane?

I don't think so. got between 10.5-11.0 in the city with normal and still getting the same with 97

5. Any perceptible performance differences between Speed97 and Power99?

I haven't tried 99 as yet, but other friends with remapped jets say its even better but on Map3

6. How much was the per liter cost when you filled up?

I think both 97 and 99 are about 100 bucks/L

[zebo]

Originally Posted by Santoshbhat

I am right behind you.

Yes, they say no additives since they want to play safe. When you allow people to add additives, you lose control over what stuff people put in their cars.

Speed 97 and Power 99 are nothing but normal fuel with additives. A chemical concoction that boosts the octane rating. They also contain cleansing agents that will help keep injectors clean, which again is crucial for direct injection engines for good long term health.

Certainly better than paying higher for regular vPower(shell) and regular power fuel which has only cleansing additives and no octane boost.

Btw, have heard better reviews about 'proctane' for octane boost, and negative reviews about stp, due to metal contents in it or so, not very sure though. Would you able to throw some light on these?

[Santoshbhat]

Originally Posted by zebo

Certainly better than paying higher for regular vPower(shell) and regular power fuel which has only cleansing additives and no octane boost.

Btw, have heard better reviews about 'proctane' for octane boost, and negative reviews about stp, due to metal contents in it or so, not very sure though. Would you able to throw some light on these?

I haven't come across any reviews which said that STP caused any negative effects. It is widely available and has been on the market for quite a long time. Most reviews are positive which is why I went ahead and tried it. After about six months of use, I can say it does make a difference and it isn't just a placebo.

There are some articles and videos which have compared different brands of octane boosters. STP is one of the cheaper ones and in terms of the desired results, it is less than the really expensive ones which are more potent and used during races etc... Most say that for normal everyday use STP is good enough. It is easily available on Amazon so that makes it easy to procure. At the same time I am scared of fakes being sold on these online portals!

[itwasntme]

Originally Posted by Santoshbhat

Yes, they say no additives since they want to play safe. When you allow people to add additives, you lose control over what stuff people put in their cars.

Already bought from Amazon ten minutes after your post. Mind you, this purchase was just after I had disconnected my wife's call with a message that I was in a meeting, AND unfortunately she spotted the purchase seconds later as she was also on Amazon

Have a lot of explaining to do later today.

[suhaas307]

Originally Posted by Santoshbhat

Speed 97 and Power 99 are nothing but normal fuel with additives. A chemical concoction that boosts the octane rating..

I don't think this is correct. 97 / 99 octane petrol is definitely not "normal fuel with additives".

V Power or Super, or such labels represent normal petrol with additives.

Figures such as 97 / 99 indicate the index of a fuel’s resistance to burning too early inside the engine – if that happens, it causes ‘pinking’ or ‘pinging’, which is mechanically destructive at high revs.

I am not sure if adding octane boosters or other such additives will help achieve the same results you'd get from actual high-octane petrol. But I may be wrong.

[Santoshbhat]

Originally Posted by suhaas307

I don't think this is correct. 97 / 99 octane petrol is definitely not "normal fuel with additives".

V Power or Super, or such labels represent normal petrol with additives.

Figures such as 97 / 99 indicate the index of a fuel’s resistance to burning too early inside the engine – if that happens, it causes ‘pinking’ or ‘pinging’, which is mechanically destructive at high revs.

I am not sure if adding octane boosters or other such additives will help achieve the same results you'd get from actual high-octane petrol. But I may be wrong.

By additives I meant chemicals that are added to petrol to increase its resistance to igniting too early. Not the detergent type additives which they may also contain. I am not a petrochemical expert, but I do remember reading somewhere that petrol is produced in a standard manner in the refineries and the the premium or high octane stuff is prepared by mixing the standard petrol with special chemicals which increase it's RON and MON ratings. I may be wrong as well.

Adding off the shelf octane boosters may not give same results as branded high octane petrol from the pump, but something is better than nothing. I feel it does increase the octane rating by one or two basis points. I would also like to say that at times Speed 97 or Power 99 also feels like it is normal 91 and not high Octane. Some tankfills feel particularly dull and immediately after another fill the car starts responding well. So I feel there are variations in fuel chemistry that comes out from fuel plants as well. One could allege malpractice since the difference in price is substantial. But a lot of high end super car kind of cars regularly tank up at these places. I don't think they will risk the backlash from these guys!