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[omega2018]

Higher octane fuel doesn't give a 'bigger bang' or help increase power output. If petrol is identified as higher octane, it means that of the many hydrocarbons of which it is composed, octane is there in higher proportions. As octane is more stable than other hydrocarbons, this results in a more stable fuel that is less likely to knock. Using the so called premium or 'high octane' fuel in an engine designed for high performance and/or turboed engine will allow that engine to function as intended, without knocking, it won't make a bigger bang or make more bhp than stated, nor will it do that in an engine that is capable of running on regular fuel. Ask yourself how many standard road cars really need high octane fuel!

it allows the ignition to run further advanced without knock this does give a bit more power and economy. only works in cars which have variable ignition timing controlled by knock sensors (which must be almost all by now) and which have a decent CR.  hence 10% better mpg on the 2.5 v6 (CR 10:1). super unleaded is rarely 10% more expensive than ordinary unleaded.

[05omegav6]

It's not 10% better though...

[Sir Tigger KC]

As I've also just fitted muffs!

You can't beat a nice fitted muff! 

[geoffr70]

Higher octane fuel doesn't give a 'bigger bang' or help increase power output. If petrol is identified as higher octane, it means that of the many hydrocarbons of which it is composed, octane is there in higher proportions. As octane is more stable than other hydrocarbons, this results in a more stable fuel that is less likely to knock. Using the so called premium or 'high octane' fuel in an engine designed for high performance and/or turboed engine will allow that engine to function as intended, without knocking, it won't make a bigger bang or make more bhp than stated, nor will it do that in an engine that is capable of running on regular fuel. Ask yourself how many standard road cars really need high octane fuel!

it allows the ignition to run further advanced without knock this does give a bit more power and economy. only works in cars which have variable ignition timing controlled by knock sensors (which must be almost all by now) and which have a decent CR. hence 10% better mpg on the 2.5 v6 (CR 10:1). super unleaded is rarely 10% more expensive than ordinary unleaded.

No

[zirk]

Not sure if Shell still do this but keep an eye out for Shell Garages that are closed for Refurbishment, then contact Customer Services, they normally nominate another Shell Garage thats closest and send you a book of Vouchers to use in the adjacent Garage, this can include 10p off per litre and sometimes promotes there V Power for the same price as the normal stuff included within the 10p off. 


Cant remember if you need to be on the Shell Drivers Card Scheme or not for this, 

[omega2018]

Higher octane fuel doesn't give a 'bigger bang' or help increase power output. If petrol is identified as higher octane, it means that of the many hydrocarbons of which it is composed, octane is there in higher proportions. As octane is more stable than other hydrocarbons, this results in a more stable fuel that is less likely to knock. Using the so called premium or 'high octane' fuel in an engine designed for high performance and/or turboed engine will allow that engine to function as intended, without knocking, it won't make a bigger bang or make more bhp than stated, nor will it do that in an engine that is capable of running on regular fuel. Ask yourself how many standard road cars really need high octane fuel!

it allows the ignition to run further advanced without knock this does give a bit more power and economy. only works in cars which have variable ignition timing controlled by knock sensors (which must be almost all by now) and which have a decent CR. hence 10% better mpg on the 2.5 v6 (CR 10:1). super unleaded is rarely 10% more expensive than ordinary unleaded.

No

It's not 10% better though...

its easy to do the test yourself rather than spouting forth

[Nick W]

Higher octane fuel doesn't give a 'bigger bang' or help increase power output. If petrol is identified as higher octane, it means that of the many hydrocarbons of which it is composed, octane is there in higher proportions. As octane is more stable than other hydrocarbons, this results in a more stable fuel that is less likely to knock. Using the so called premium or 'high octane' fuel in an engine designed for high performance and/or turboed engine will allow that engine to function as intended, without knocking, it won't make a bigger bang or make more bhp than stated, nor will it do that in an engine that is capable of running on regular fuel. Ask yourself how many standard road cars really need high octane fuel!

it allows the ignition to run further advanced without knock this does give a bit more power and economy. only works in cars which have variable ignition timing controlled by knock sensors (which must be almost all by now) and which have a decent CR. hence 10% better mpg on the 2.5 v6 (CR 10:1). super unleaded is rarely 10% more expensive than ordinary unleaded.

No

It's not 10% better though...

its easy to do the test yourself rather than spouting forth

I've tried higher octane petrol on everything I've owned(knackered 1.7 astravan excluded!) recently, and the only one that had a noticeable difference was my 1.8GDI Legnum. That had a slight improvement in power when heavily loaded; it got about 4 tankfuls in France.

The only change it makes to the Omega is a fillup costs more.

[05omegav6]

Higher octane fuel doesn't give a 'bigger bang' or help increase power output. If petrol is identified as higher octane, it means that of the many hydrocarbons of which it is composed, octane is there in higher proportions. As octane is more stable than other hydrocarbons, this results in a more stable fuel that is less likely to knock. Using the so called premium or 'high octane' fuel in an engine designed for high performance and/or turboed engine will allow that engine to function as intended, without knocking, it won't make a bigger bang or make more bhp than stated, nor will it do that in an engine that is capable of running on regular fuel. Ask yourself how many standard road cars really need high octane fuel!

it allows the ignition to run further advanced without knock this does give a bit more power and economy. only works in cars which have variable ignition timing controlled by knock sensors (which must be almost all by now) and which have a decent CR. hence 10% better mpg on the 2.5 v6 (CR 10:1). super unleaded is rarely 10% more expensive than ordinary unleaded.

No

It's not 10% better though...

its easy to do the test yourself rather than spouting forth

Piss off.

I speak as I find and have tried V power in the following cars...

'95 N 1.4 Peugeot 106
'51 3.2 Omega manual
'55 1.9 Vectra 150 cdti
'07 1.9 Seat Altea XL tdi
'54 3.2 Omega manual
'00 2.0 Omega manual
'55 1.8 Vectra C saloon
'55 1.8 Vectra C hatch
'58 1.8 Vectra C hatch
'03 3.2 Omega manual
'63 2.0 Insignia 130cdti
'03 2.2 Omega auto
'11 2.2 Merc E class Blue efficiency diesel auto
'61 2.0 Insignia 160 cdti 4x4
'03 3.2 Omega auto

If that isn't a wide enough test pool, then I don't know what is... on every single car, the net result was zero, ie the extra cost was balanced by a slight increase in mpg, resulting in the same pence per mile.

[05omegav6]

A fresh air filter, Wynns fuel treatment, a tank or two of V power and a good thrashing are useful for keeping v6 cat codes at bay, and for clearing the system through immediately prior to an MoT. The only other reason for using it is to collect double/triple points

[omega2018]

Piss off.

I speak as I find and have tried V power in the following cars...

'95 N 1.4 Peugeot 106
'51 3.2 Omega manual
'55 1.9 Vectra 150 cdti
'07 1.9 Seat Altea XL tdi
'54 3.2 Omega manual
'00 2.0 Omega manual
'55 1.8 Vectra C saloon
'55 1.8 Vectra C hatch
'58 1.8 Vectra C hatch
'03 3.2 Omega manual
'63 2.0 Insignia 130cdti
'03 2.2 Omega auto
'11 2.2 Merc E class Blue efficiency diesel auto
'61 2.0 Insignia 160 cdti 4x4
'03 3.2 Omega auto

If that isn't a wide enough test pool, then I don't know what is... on every single car, the net result was zero, ie the extra cost was balanced by a slight increase in mpg, resulting in the same pence per mile.

i don't know why you're getting so worked up about this.  anyone can post a long list of cars they have driven but the proper test is quite easy to do especially if you drive to work on a motorway that isn't too busy (as i used to do):

* choose a set distance eg between 2 or three junctions
* make sure your tank is fully either unleaded or super unleaded
* set cruise control
* reset fully your average mpg on the display
* drive the distance at the cruise speed and write down the final mpg figure.

tested half a dozen times i was getting about 10% more mpg with super on the 2.5 V6, that's my experience.

hopefully oof is about people sharing their experiences not about keyboard warriors telling people to piss off

[2boxerdogs]

I have always used a higher grade fuel since 2010 ,not bothered about MPG if I was I'd buy a small vehicle, the cars have always performed well & sailed through the emissions part of the MOT, for a few pence I am happy with that.

[05omegav6]

I responded that way as your implication was that I was merely 'gobbing off'... Your patronising reaction does little to change that...

Collectively I have done nigh on 450K miles in those cars, on a variety of journey types including stop start town work and non stop long distance. Consistently the results are the same... The pence per mile cost remains constant regardless of the type of fuel used.
Simples.

[dbug]

Piss off.

I speak as I find and have tried V power in the following cars...

'95 N 1.4 Peugeot 106
'51 3.2 Omega manual
'55 1.9 Vectra 150 cdti
'07 1.9 Seat Altea XL tdi
'54 3.2 Omega manual
'00 2.0 Omega manual
'55 1.8 Vectra C saloon
'55 1.8 Vectra C hatch
'58 1.8 Vectra C hatch
'03 3.2 Omega manual
'63 2.0 Insignia 130cdti
'03 2.2 Omega auto
'11 2.2 Merc E class Blue efficiency diesel auto
'61 2.0 Insignia 160 cdti 4x4
'03 3.2 Omega auto

If that isn't a wide enough test pool, then I don't know what is... on every single car, the net result was zero, ie the extra cost was balanced by a slight increase in mpg, resulting in the same pence per mile.

i don't know why you're getting so worked up about this.  anyone can post a long list of cars they have driven but the proper test is quite easy to do especially if you drive to work on a motorway that isn't too busy (as i used to do):

* choose a set distance eg between 2 or three junctions
* make sure your tank is fully either unleaded or super unleaded
* set cruise control
* reset fully your average mpg on the display
* drive the distance at the cruise speed and write down the final mpg figure.

tested half a dozen times i was getting about 10% more mpg with super on the 2.5 V6, that's my experience.

hopefully oof is about people sharing their experiences not about keyboard warriors telling people to piss off

Agreed

Methinks someone has not been taking their meds! 

[dbug]

Not sure if Shell still do this but keep an eye out for Shell Garages that are closed for Refurbishment, then contact Customer Services, they normally nominate another Shell Garage thats closest and send you a book of Vouchers to use in the adjacent Garage, this can include 10p off per litre and sometimes promotes there V Power for the same price as the normal stuff included within the 10p off. 


Cant remember if you need to be on the Shell Drivers Card Scheme or not for this, 

Did this about 6 months ago - I have a Shell Drivers Card, but was not asked for any details of it.

[Broomies Mate]

* choose a set distance eg between 2 or three junctions
* make sure your tank is fully either unleaded or super unleaded
* set cruise control
* reset fully your average mpg on the display
* drive the distance at the cruise speed and write down the final mpg figure.

tested half a dozen times i was getting about 10% more mpg with super on the 2.5 V6, that's my experience.

And what exactly is that going to prove?  So you have driven say 15 miles on a handful of occasions and made a comparison? 

Unless you have weather reports for the days which you carried out these scientific tests and can prove the temperature and air pressure were identical, I'll not believe a word of it.

I'm an advocate of Higher Octane fuels in vehicles where the ECU can make use of it.  The Omega..... won't.  It simply cannot advance/retard the ignition far enough to make a difference, and as I've said before, nowhere near 10%.

I'd also question the accuracy of the MID below ~100 miles.  Mine used to vary wildly after a reset (3x Omega Elites, 2x 3.0 and 1x 3.2).

I can actually see how far the ECU has advanced the timing on my car, and 'Super' fuels do make a noticeable difference in performance.  As for MPG, no idea..... I don't like crying, so I don't look at it too often.