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1. ## Regular Vs Hi-octane

Guys quick question:

Currently i am using Regular category fuel in my Car (Civic 2013) on which i am getting an average of 8 to 8.5 Km/L.

I have conducted a small study and want to share my assumptions and want to get your feedback on it.

Scenario 1 - Regular fuel amount = 5000 rs. / Price = 94.5 rs = 53L - - -Average 8KM/L = Total 425KMs

Scenario 2 - Hi-octane fuel amount = 5000 rs. / Price = 114.5 rs = 44L - - -Average *9KM/L = Total 396KMs

Difference = 425 - 396 = 29Kms

so i am just curious that just for the sake of 29 - 30 kms why are we all not using hi-octane in our cars. confused ? ? ? ?

2. Originally Posted by Corollarules
Nope I'm talking about the local one with m13. Its written in the owners manual. Btw the way to know whether your car requires high octane or not is to know what octane no petrol is required for it also known as RON. Regular petrol is around 87 RON and almost all new engines require 91RON. The boost one gets with high octane is because you give the car right fuel and so it performs to its full potential. Its not really fuel giving boost but rather its the engine perfoming optimally.
if you are a swift owner and want to use hi octane use it I am a suzuki liana and once used it in my car and I didn't found any difference in performance and m13a have compression ratio of 9:5:1 and hi octane use in 10:1 or higher so i couldn't be used in m13a and share where in the manual it written that we should use hi octane

3. Originally Posted by saboor73
if you are a swift owner and want to use hi octane use it I am a suzuki liana and once used it in my car and I didn't found any difference in performance and m13a have compression ratio of 9:5:1 and hi octane use in 10:1 or higher so i couldn't be used in m13a and share where in the manual it written that we should use hi octane
Well I have already sold my swift so I dont have owners manual now, you can ask any fellow pakwheelers to post the page for you. And there can be many reasons why you didn't feel any difference. Did you get it filled from a company operated pump.

4. Originally Posted by Corollarules
Well I have already sold my swift so I dont have owners manual now, you can ask any fellow pakwheelers to post the page for you. And there can be many reasons why you didn't feel any difference. Did you get it filled from a company operated pump.
yes it was filled with company operated shell pump and after that am I checked engine oil it had more carbon it it should have that means it was deposited on the valves and after that I got my car compression test as I thought my car is lossing comression but the compression was fine and when the mechanic at 3s asked my I want to get the compression test of a car which is only 45k I told the whole stroy about hi octane,extra cabron etc etc he recommanded me not to use hi octane and than I researched on net and found m13a compression ratio is 9:5:1 and hi oct is used in 10 or higher

5. Originally Posted by Corollarules
Nope I'm talking about the local one with m13. Its written in the owners manual. Btw the way to know whether your car requires high octane or not is to know what octane no petrol is required for it also known as RON. Regular petrol is around 87 RON and almost all new engines require 91RON. The boost one gets with high octane is because you give the car right fuel and so it performs to its full potential. Its not really fuel giving boost but rather its the engine perfoming optimally.
good info. thanks.

But, RON varies from 91~100. Depends on country to country, company to company.
Anyone knows the RON value of Pak. hi-octane?

6. ^ i beleive in PAK Regular is 87 and hioctane is 91.

7. Originally Posted by irfansiddique
^ i beleive in PAK Regular is 87 and hioctane is 91.
that was long time bak....some ppl have tested hi-octane from good reputable pump n found out hi-octane is 93 RON.....most of the modern engine cant run in 87 ron like new altis or civic so I believe regular super is above than 87 maybe 89RON

8. Originally Posted by salik990
that was long time bak....some ppl have tested hi-octane from good reputable pump n found out hi-octane is 93 RON.....most of the modern engine cant run in 87 ron like new altis or civic so I believe regular super is above than 87 maybe 89RON
as per my info;
Normal Regular(Shell, Caltex, PSO) is 87RON,

Total claims there Super Regular is 89RON and

Hioctane is i think either 91 or 93 RONs.

9. Any gud petrol pump near thokar niaz beg lahore thats company operated and sells genuine hi-octane???

Any gud petrol pump near thokar niaz beg lahore thats company operated and sells genuine hi-octane???
Zoom and pso have good hi-octane @ thokar niaz baig.i am using in my vitz 2004 1500 trs super and 500ts HOBC.
Both are good.

11. Originally Posted by omer.s
Zoom and pso have good hi-octane @ thokar niaz baig.i am using in my vitz 2004 1500 trs super and 500ts HOBC.
Both are good.
Thanks bro

Thanks bro
No prob bro :-)

13. Originally Posted by salik990
that was long time bak....some ppl have tested hi-octane from good reputable pump n found out hi-octane is 93 RON.....most of the modern engine cant run in 87 ron like new altis or civic so I believe regular super is above than 87 maybe 89RON
if you know someone who has a very neat and clean 1996 civic VTi made by Atlas Honda motorcars Pakistan, pop the fuel flap open and read the RON rating for it.

14. Xulfiqar sb kindly also comment on the topic

15. Originally Posted by Xulfiqar
if you know someone who has a very neat and clean 1996 civic VTi made by Atlas Honda motorcars Pakistan, pop the fuel flap open and read the RON rating for it.
i ll see if someone still got the 96 civic....btw on my thai vigo petrol fuel flap shows 91 or more RON....but i filled super regular which work fine but never tried hi-octane yet

16. Originally Posted by salik990
i ll see if someone still got the 96 civic....btw on my thai vigo petrol fuel flap shows 91 or more RON....but i filled super regular which work fine but never tried hi-octane yet
The sticker said it requires 95 RON and up

17. even the g13ba is said to require 95 ron, despite being a carburetor engine

18. 29kms is very very low to quantify any analysis honestly, this can be extended or removed just by changing one's driving style or location.

19. Regular petrol from parco's refinery does have a higher octane value than regular petrol from other sources - from a scientific study. Total pumps get it from parco.

BUT if your vehicle doea not have a high compression engine, or a one tuned with crazy advanced ignition tables, then it would actually give you lower performance (and mileage) - from personal experience.

JDMs that knock heavy on regular fuel, try using total's regular petrol for one or two fills. Best part is that it carries no extra charge

20. Originally Posted by ahsanonline
Regular petrol from parco's refinery does have a higher octane value than regular petrol from other sources - from a scientific study. Total pumps get it from parco.

BUT if your vehicle doea not have a high compression engine, or a one tuned with crazy advanced ignition tables, then it would actually give you lower performance (and mileage) - from personal experience.

JDMs that knock heavy on regular fuel, try using total's regular petrol for one or two fills. Best part is that it carries no extra charge
Total charges 90 paisa more than normal per litre

21. Can any one explain the relation between high octane and engine compression in detail here?

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