So BP petrol is really bad

Hogwash. All fuels are the same source, bar a few less or more additives. Consumption depends on traffic, driving style, weather... so many variables.

Unless you test in lab conditions with a control and and experiment, this is all just conjecture.
 
genetic said:
I base my experience on science. Your daily driving habits are not considered science. You do know that there are so many external variables that make your point moot?

I bet you'd get the same mileage per tank if you weren't taking placebo's.
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Unfortunately for you, it seems you AR the one on placebos. I am basing my test on driving to work five days a week taking the same route. Occasionally I would go to the mall.

What you call science sometimes doesn't beat practicality.

Continue taking those placebos... and enjoy them while at it.
 
Why do you need to replace your spark plugs every 20k km, they should be lasting much longer?

Dups! said:
Unfortunately for you, it seems you AR the one on placebos. I am basing my test on driving to work five days a week taking the same route. Occasionally I would go to the mall.

What you call science sometimes doesn't beat practicality.

Continue taking those placebos... and enjoy them while at it.
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Using your own everyday observations you can clearly see that the earth is flat, but do you actually believe that?
 
oscarlets said:
Hi.

Since Pick n pay introduced partnership with BP petrol stations, I have been using BP fuel to earn points.

But I'm noticing sth troubling, the car is lately losing power and it's 7k to major service.

I usually feel loss of power at 20k km and I know it's time to change spark plugs, but ever since I started using BP, from 8k km now at 13k km the car is losing power.

This is BP petrol no doubt. But why is their petrol different from others?

I have went back to shell and the car is feeling revived. What is wrong with BP petrol?

PS. I fill 95 unleaded. Car is Honda jazz. I really did try to prove my theory by paying close attention after refill. Shell gives the car power. BP performs average and loses power.
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All 8 sparkplugs every 20k?
 
KhoisanX said:
Why do you need to replace your spark plugs every 20k km, they should be lasting much longer?



Using your own everyday observations you can clearly see that the earth is flat, but do you actually believe that?
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Comment of the year, congratulations! You have truly outdone yourself.
 
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Arthur said:
It all comes out of the same refineries. The only diffs is in the label.
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Not entirely true.
Same refineries - different additives.

I find Caltex better than most.
 
Dups! said:
Unfortunately for you, it seems you AR the one on placebos. I am basing my test on driving to work five days a week taking the same route. Occasionally I would go to the mall.

What you call science sometimes doesn't beat practicality.

Continue taking those placebos... and enjoy them while at it.
Click to expand...

Science definitely beats practicality.... especially when your practicality has infinite variables in it.
 
Arthur said:
Could the OP's problem be an octane cock-up at the garage - 93 ending up in a 95 tank? In other words, human error, incompetence, or crookery. 1200m altitude is generally the octane dividing line in SA; less atmospheric oxygen at altitude means higher octane fuel is a waste of money the higher you go. Using a too-low octane will at some point result in pre-ignition or pinging (esp with higher compression ratios), but maybe his local BP garage inadvertently mixes 93 into the 95/97 storage tanks, resulting in a "94", which he picks up as crappy petrol...?
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I don't understand why people use 95 in Gauteng... Maby because its more expensive it must be better...
I never use 95 (unless I'm at the coast). Even in my brand new Polo 93 in all the way, my cap even says "93 inland - 95 coast"
 
genetic said:
Petrol contains around 10% ethanol, which helps separate water contamination into a separate layer which doesn't get pumped.

I doubt water contamination is the OP's cause for concern.
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That would be incredible if true; that we have ethanol blends in SA.
If anything you can get a very low blend directly from Sasol. Something like E2.
Definitely nothing like E10.
If it was true it would be big news. Some cars would also need flex fuel sensors.

There were big lofty plans for bio-ethanol production and mandatory blends.
But nothing happened.

http://www.engineeringnews.co.za/ar...conference-in-november-2018-10-10/rep_id:4136
https://www.dailymaverick.co.za/art...l-from-sugarcane-why-is-sa-not-rushing-ahead/
http://www.energy.gov.za/files/esources/renewables/Synopsis_FinalReport_Bio-EthanolBlendingValue.pdf
 
Jakkels1991 said:
I don't understand why people use 95 in Gauteng... Maby because its more expensive it must be better...
I never use 95 (unless I'm at the coast). Even in my brand new Polo 93 in all the way, my cap even says "93 inland - 95 coast"
Click to expand...

My car requires 98 RON petrol but 95 RON is all that is available in South Africa. Most modern day direct injection, turbo charged cars require at least 95 RON.
 
MEIOT said:
Not entirely true.
Same refineries - different additives.

I find Caltex better than most.
Click to expand...

Again, not entirely true, different refineries but made to the same specification and then each brand has their own additives. Sasol is the only producer of ultra low sulphur diesel though which is made using their coal to liquid process.
 
Perhaps just that station?
With my Jeep I know if I put in Petrol from the Shell at PicknPay hypermarket in Brackenfell then mornings is a problem. Low idling and when reversing the car will stutterand surge. Go to the Engen, put in R100 and problem goes away. Back to Shell, and problem is back.. been trying this for 2 months and it is like clockwork.
 
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