95 Octane fuel quality

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Post by panic-mechanic » Mon Jan 14, 2008 8:44 am

Protea chemicals in Wadeville sell it in 20/25 l containers.
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Post by GtiDog » Mon Jan 14, 2008 8:51 am

Inferno wrote:
GtiDog wrote:Hi There

Yes we did....

The best by far is BP 95

And if you want propper fuel, do the following

take 40 liters of BP95 unleaded fuel.
Mix 2.5 Liter Xylene and 2.5 Liter Taleune in the petrol to give you close to 99 Octane fuel

If you have a "BIT" of a problem with flames comming out of the exhaust, you can mix 400 ml MOTUL two stroke oil in the mix
hey GtiDog, where do you get your Toluene and Xylene from? Do you order them directly from the chemical wholesalers like Merck or Aldrich (although i do know that they sell in bulk) or is there another supplier that sells the goods? Also, what grade ie. which percentage purity is good for this application?
You can get it from guys here in Kaya Sand in Randburg. I get it from them Directly yes, you need to bring your own container that needs to be able to handle Xylene or Taulene ...

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Post by Hackernen » Mon Jan 14, 2008 3:59 pm

does anybody know where to get it in durban, thanks.
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Post by Sacrilege » Mon Jan 14, 2008 4:30 pm

My hungry 4.0l ford ran on 93 for almost two months hahaha I didnt even know it.... One "joggie" Tuned me dont I want 95 I was like GEEEZ MAN I thought alk fuel was 95 Bloody Bastards..... :evil: :evil:

With the 93 is was a bit jumpy around the low range rpms and lacked the top end as well,

There was a major increase in performace with the 95, maybe its the weather change I dont know...

Rather use the 95

The manufacturer:
Well you have to ask yourself something...

Do you want petrol's priced cheaper? We all will say yes and we all want petrol cheaper.

They way to do it will be to mainly use SA Manufacturers companies Like Engen Sasol, Excel and I think BP.


The current prices are set by the international markets Shell etc
If you use only sa branded fuel they will have to drop their prices for them to be able to sell their fuel. Quite simple really.

So use 95 from SA Suppliers... Please

:twisted: I've got a hugry 4.0L to feed :twisted:
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Re: 95 Octane fuel quality

Post by ICE King » Thu Sep 05, 2019 11:26 am

Thread revival......

Recently saw one of the tuner's here in CPT testing(russian fuel octane tester) caltex 95 and got a reading of 92, now I can't help think that this is the reason for a handful of the modern motors suffering premature engine failure.

I used Shell at the time of my car being logged and tuned - Currently my logs still show almost zero timing pull and I've maintained using Shell just because it is what was at the time and because it's the most convenient petrol station to use on my daily route.

Reading back on this thread , seems BP 95 was the popular choice but have my doubts about consistency.

Question......Does anyone have preferred petrol stations they use and why?

Also seems there's to be a compromise between fuel quality and mileage from the fuel - How true is this?

Keen to hear opinions in 2019.
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Re: 95 Octane fuel quality

Post by pyro-zn » Thu Sep 05, 2019 11:42 am

I always had a feeling that the 95 unleaded fuel wasn't exactly 95 ... but what I would like to know, is if those drums of fuel which say 102ron etc are really 102ron (or even close). This is excluding fuel additives.

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Re: 95 Octane fuel quality

Post by VAG Fan » Thu Sep 05, 2019 12:07 pm

Somebody wrote earlier in this thread that a fuel which separates water out quickly, is better. I wouldn't be so sure. A fuel that mixes (to some extent) with water, "mops up" small residues of water in the system and transports them to the combustion chamber, which should keep the tank and the components cleaner. A fuel that "sheds" water will promote water droplet or puddle formation in the tank, pump, components, etc.

Just my 2c...
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Re: 95 Octane fuel quality

Post by HendrikCTI » Thu Sep 05, 2019 2:12 pm

My daily to work and back is a 2015 Honda XR150L motorcycle. Carburetor not fuel injection.
I have had this bike for a couple of years now and with this small engine I could pick up small differences in fuel.
Here are the differences I noticed:
1. Easier starting and smoother idling in winter time. With certain brands it would splutter while idling to get it a little warmed up. Sometimes skip a
beat and just die and then I need to start it again.
2. Slightly better acceleration.
3. Slightly better fuel economy.

The best fuel for this engine? SASOL.
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Re: 95 Octane fuel quality

Post by Howie-WP » Thu Sep 05, 2019 2:16 pm

Unless you have a certified mobile chem lab, it would be hard to accurately determine fuel octane. Octane is also affected by a number of external issues.
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Re: 95 Octane fuel quality

Post by ICE King » Thu Sep 05, 2019 3:01 pm

pyro-zn wrote:
Thu Sep 05, 2019 11:42 am
I always had a feeling that the 95 unleaded fuel wasn't exactly 95 ... but what I would like to know, is if those drums of fuel which say 102ron etc are really 102ron (or even close). This is excluding fuel additives.
I share the same sentiment , We purchase in good faith with no guarantee's, we'll never know, would've been nice if we could test fuel on the spot.
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Re: 95 Octane fuel quality

Post by ICE King » Thu Sep 05, 2019 3:16 pm

Howie-WP wrote:
Thu Sep 05, 2019 2:16 pm
Unless you have a certified mobile chem lab, it would be hard to accurately determine fuel octane. Octane is also affected by a number of external issues.
Correct , After seeing that video of the test , can't help think that we're not getting what we pay for and with all the newer cars being more sensitive to fuel quality ,now breaking because of detonation ,more specifically the smaller turbo motors. My question is just HOW BAD is our fuel quality and does it differ from petrol garage to petrol garage.
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Re: 95 Octane fuel quality

Post by ICE King » Thu Sep 05, 2019 3:30 pm

Another example that confirms our fuel is bad , The New Ford Fiesta ST will not come to SA because of fuel quality.

I feel for the blokes buying brand new cars only for it to break because of false advertised fuel quality , then having to foot a heavy repair bill, only for it to break again.

There's a problem between the car manufacturers and the fuel suppliers yet the consumer ends of screwed. :crazy:
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Re: 95 Octane fuel quality

Post by Howie-WP » Thu Sep 05, 2019 3:35 pm

Fuel octane testing is quite expensive.....was always a issue when racing (local regional) and you were technically limited to 102 leaded and later 98 Unleaded racing fuel. Many people complained that drivers are using higher octane, but balked at the cost of having the actual test done (even though if protest is upheld, loser would have to cover)
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Re: 95 Octane fuel quality

Post by NF. » Fri Sep 06, 2019 8:11 am

Those hand held octane testers are useless. You can't believe them [Caveat: These devices are designed to test discrepancies in KNOWN fuels. So they have their uses].

To do a proper octane test you have to send the fuel to a certified lab that has a CFR engine. The test is upwards of R3,000.

That being said. We have done a few octane tests and always use BP and our base test has never come out below 95. We do buy fuel from a very busy station, so that may help. Fuel loses octane with age.
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Re: 95 Octane fuel quality

Post by ICE King » Fri Sep 06, 2019 11:29 am

NF. wrote:
Fri Sep 06, 2019 8:11 am
Those hand held octane testers are useless. You can't believe them [Caveat: These devices are designed to test discrepancies in KNOWN fuels. So they have their uses].

To do a proper octane test you have to send the fuel to a certified lab that has a CFR engine. The test is upwards of R3,000.

That being said. We have done a few octane tests and always use BP and our base test has never come out below 95. We do buy fuel from a very busy station, so that may help. Fuel loses octane with age.
Thank you for the feedback , unfortunately I cannot comment on the device used in the test I saw but it has created some uncertainty hence my post.

Currently my only measure/resource for testing is using the logs from my vehicle , Going to try BP on my next tank and see if there's are notable differences in the logs and while the logs cannot measure fuel quality on it's own , at least I'll know if the car is performing either better or worst.

We pay the same price for fuel no matter what garage, and if I can get better from another garage ,why not, I'm sure it has an effect on any engine in the long run.
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Re: 95 Octane fuel quality

Post by Neuk » Tue Sep 10, 2019 1:28 pm

ICE King wrote:
Thu Sep 05, 2019 11:26 am
Thread revival......

Recently saw one of the tuner's here in CPT testing(russian fuel octane tester) caltex 95 and got a reading of 92, now I can't help think that this is the reason for a handful of the modern motors suffering premature engine failure.

I used Shell at the time of my car being logged and tuned - Currently my logs still show almost zero timing pull and I've maintained using Shell just because it is what was at the time and because it's the most convenient petrol station to use on my daily route.

Reading back on this thread , seems BP 95 was the popular choice but have my doubts about consistency.

Question......Does anyone have preferred petrol stations they use and why?

Also seems there's to be a compromise between fuel quality and mileage from the fuel - How true is this?

Keen to hear opinions in 2019.
Did they test any other fuel brands? it would be interesting to see as generally all fuel in the same area comes from the same base stock fuel.
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Re: 95 Octane fuel quality

Post by Hoosier Daddy » Tue Sep 10, 2019 3:27 pm

pyro-zn wrote:
Thu Sep 05, 2019 11:42 am
I always had a feeling that the 95 unleaded fuel wasn't exactly 95 ... but what I would like to know, is if those drums of fuel which say 102ron etc are really 102ron (or even close). This is excluding fuel additives.
Hello you psu,

So, as UCBR, we have to pay per test at an accredited lab to verify the octane ratings of our products. Receive a full report on it, however we always understate the rating for safety factors.
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Re: 95 Octane fuel quality

Post by Hotdubz » Thu Sep 12, 2019 2:04 pm

My car seems to like Engen and BP down here in Durbs.
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Re: 95 Octane fuel quality

Post by Hoosier Daddy » Fri Sep 13, 2019 1:35 pm

From some sources in the Petrochem industry, Shell's additives do outperform all other brands by a long way - but how they mesh with further additives isn't tested (of course)
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Re: 95 Octane fuel quality

Post by Kavi4GP » Fri Sep 13, 2019 4:07 pm

Hoosier Daddy wrote:From some sources in the Petrochem industry, Shell's additives do outperform all other brands by a long way - but how they mesh with further additives isn't tested (of course)
They use Lubrizol , all it is you sign agreements they give you the packages on a scale for what ever octane you want , you pay depending on packages , same for oil. Hence you have smaller blenders with "meets vw 502..." Long as the TBN , the processing is to the additives makers approved spec you can state it on a bottle.

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Re: 95 Octane fuel quality

Post by Hoosier Daddy » Wed Sep 18, 2019 3:22 pm

Kavi4GP wrote:
Fri Sep 13, 2019 4:07 pm
Hoosier Daddy wrote:From some sources in the Petrochem industry, Shell's additives do outperform all other brands by a long way - but how they mesh with further additives isn't tested (of course)
They use Lubrizol , all it is you sign agreements they give you the packages on a scale for what ever octane you want , you pay depending on packages , same for oil. Hence you have smaller blenders with "meets vw 502..." Long as the TBN , the processing is to the additives makers approved spec you can state it on a bottle.

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Hi bru,

Meant their fuel additives (VPower in this case) as opposed to Excellium, Ultimate etc.
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