Shell V-Power unleaded price premium over standard
Discussion
C70R said:
The mental gymnastics that some people go through to justify spending 10p a litre more on petrol are hilarious.
It will make no difference unless your car is set up to benefit from it, which most cars aren't.
If you want to do it because it makes you feel special/better, that's cool - but let's all be real.
I agree that the performance improvement (in a car that advances timing) isn't worth it unless trying to shave off 0.2 seconds around donington.It will make no difference unless your car is set up to benefit from it, which most cars aren't.
If you want to do it because it makes you feel special/better, that's cool - but let's all be real.
While I agree with your comment, I think there are some situations where using it could benefit anyone. It could be used to prolong the performance of a new car you plan on keeping, to reduce the inevitable gradual degradation of the fuel spray pattern. It could be used to diagnose (and hopefully fix) poor running issues. It can help to get cars through MOT emissions tests. It provides a slight reward for regular use, in the form of a few mpg, smoothness, and better 'area under the curve' performance, regardless of car it seems.
Therefore, I think it would be sensible not to have a flat out rule of never buying it under any circumstances.
Grrbang said:
I agree that the performance improvement (in a car that advances timing) isn't worth it unless trying to shave off 0.2 seconds around donington.
While I agree with your comment, I think there are some situations where using it could benefit anyone. It could be used to prolong the performance of a new car you plan on keeping, to reduce the inevitable gradual degradation of the fuel spray pattern. It could be used to diagnose (and hopefully fix) poor running issues. It can help to get cars through MOT emissions tests. It provides a slight reward for regular use, in the form of a few mpg, smoothness, and better 'area under the curve' performance, regardless of car it seems.
Therefore, I think it would be sensible not to have a flat out rule of never buying it under any circumstances.
In my experience, using a higher grade of petrol than needed has resulted in better fuel efficiency rather than increased performance. Both my Honda Integra and Nissan 200sx returned about 3 MPG better running on 98 than on 95. That made it about the same price so I saw little downside in getting 98.While I agree with your comment, I think there are some situations where using it could benefit anyone. It could be used to prolong the performance of a new car you plan on keeping, to reduce the inevitable gradual degradation of the fuel spray pattern. It could be used to diagnose (and hopefully fix) poor running issues. It can help to get cars through MOT emissions tests. It provides a slight reward for regular use, in the form of a few mpg, smoothness, and better 'area under the curve' performance, regardless of car it seems.
Therefore, I think it would be sensible not to have a flat out rule of never buying it under any circumstances.
YMMV of course, it all depends on how the car is set up. Performance cars are often set up to take advantage of higher octane fuel, your average hatch/saloon is probably not.
C70R said:
This. So much this.
The mental gymnastics that some people go through to justify spending 10p a litre more on petrol are hilarious.
It will make no difference unless your car is set up to benefit from it, which most cars aren't.
If you want to do it because it makes you feel special/better, that's cool - but let's all be real.
FFS we were talking about the 335i and the 140i, they are set up for 98ron. The mental gymnastics that some people go through to justify spending 10p a litre more on petrol are hilarious.
It will make no difference unless your car is set up to benefit from it, which most cars aren't.
If you want to do it because it makes you feel special/better, that's cool - but let's all be real.
You lose around 30hp if you use 95ron.
The minute you put 95 ron in you can feel the difference.
No one is saying that if you put 98 in a car that is not set up for it you will see a benefit.
I find it strange that people on a forum like this claim they see 'no difference' when using different fuel.....
Be it, MPG, Smoothness, Outright Power, different exhaust smoke - there will be some difference. I have noticed in every car I have tried. Diesel or Petrol, old or new, Forced Induction or N/A/.......
If it doesn't make any difference, it would be the same stuff.
You cant put something different in and it perform the same. There has to be some variable output. There will be a difference. Just some people are more acute at spotting said difference.
Be it, MPG, Smoothness, Outright Power, different exhaust smoke - there will be some difference. I have noticed in every car I have tried. Diesel or Petrol, old or new, Forced Induction or N/A/.......
If it doesn't make any difference, it would be the same stuff.
You cant put something different in and it perform the same. There has to be some variable output. There will be a difference. Just some people are more acute at spotting said difference.
C70R said:
This. So much this.
The mental gymnastics that some people go through to justify spending 10p a litre more on petrol are hilarious.
It will make no difference unless your car is set up to benefit from it, which most cars aren't.
If you want to do it because it makes you feel special/better, that's cool - but let's all be real.
Are you suggesting that a modern ECU can’t advance spark tables, increase boost etc - within certain parameters - when it knows that the fuel has a higher octane?The mental gymnastics that some people go through to justify spending 10p a litre more on petrol are hilarious.
It will make no difference unless your car is set up to benefit from it, which most cars aren't.
If you want to do it because it makes you feel special/better, that's cool - but let's all be real.
NomduJour said:
Are you suggesting that a modern ECU can’t advance spark tables, increase boost etc - within certain parameters - when it knows that the fuel has a higher octane?
Also, just about every car I have owned since 1996 with the Z3 2.8i has been able too. To say most cars can't, on a forum dedicated to those who tend to like performing cars is a little ignorant.
But then with a name like C70R we expect ignorance.
People need to realise that the Octane increase in higher specification fuels is only a part of their differences.
Yes the higher octane will allow some cars to run at a more advanced ignition timing which can result in more power but EVERY car will benefit from the clean up and keep clean performance as well as improved atomisation and burning which will lead to the improved fuel economy that many people in this thread have already experienced.
Yes the higher octane will allow some cars to run at a more advanced ignition timing which can result in more power but EVERY car will benefit from the clean up and keep clean performance as well as improved atomisation and burning which will lead to the improved fuel economy that many people in this thread have already experienced.
Grayedout said:
People need to realise that the Octane increase in higher specification fuels is only a part of their differences.
Yes the higher octane will allow some cars to run at a more advanced ignition timing which can result in more power but EVERY car will benefit from the clean up and keep clean performance as well as improved atomisation and burning which will lead to the improved fuel economy that many people in this thread have already experienced.
Allegedly...Yes the higher octane will allow some cars to run at a more advanced ignition timing which can result in more power but EVERY car will benefit from the clean up and keep clean performance as well as improved atomisation and burning which will lead to the improved fuel economy that many people in this thread have already experienced.
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