Which brands of Diesel and Petrol do you find best for quality and MPG ?

Monty.

I used to buy diesel based on price only, but there is so much dodgy corrosive diesel out there now I don't risk the no brand filling stations anymore.

I find there can be a slight difference in quality and the mpg I obtain from different brands of fuels.

At the moment my current car seems to run sweetest for me on Topaz diesel, and I reckon I get 1-2 extra miles per gallon. The car also feels a bit livelier and more willing.

Granted the difference is very subtle, but I can detect it.

TJJP

Texaco

I'd be interested in any evidence of 'dodgy corrosive diesel' or how one would know how to spot it.

Gary ITR

Tesco

I consistently got 3BHP more running Maxol E5 (not all Maxol stations have this) fuel in my car and if running it I get a better MPG

Solnskaya

No poll option for "green"? Seems the most popular brand with a lot of people at the mo.:pac:

650Ginge

Solnskaya wrote: »

No poll option for "green"? Seems the most popular brand with a lot of people at the mo.:pac:

Theres no Texaco either.

gpjordanf1

Texaco

Petrol is petrol, diesel is diesel, doesn't matter where ya buy it from.

It cannot be manufactured, so quality is down to nature, not brand name!

Anyone who thinks it makes a difference is obviously easily influenced by the media, and as they say " God Bless Them "

The only thing that makes a difference in MPG etc is driving style and as they say dont drive like a " Knobhead !"

Nonoperational

gpjordanf1 wrote: »

Petrol is petrol, diesel is diesel, doesn't matter where ya buy it from.

It cannot be manufactured, so quality is down to nature, not brand name!

Anyone who thinks it makes a difference is obviously easily influenced by the media, and as they say " God Bless Them "

The only thing that makes a difference in MPG etc is driving style and as they say dont drive like a " Knobhead !"

Well that's not true.

650Ginge

gpf101 wrote: »

Well that's not true.

Complete rubbish.

Gary ITR

Tesco

gpjordanf1 wrote: »

Petrol is petrol, diesel is diesel, doesn't matter where ya buy it from.

It cannot be manufactured, so quality is down to nature, not brand name!

Anyone who thinks it makes a difference is obviously easily influenced by the media, and as they say " God Bless Them "

The only thing that makes a difference in MPG etc is driving style and as they say dont drive like a " Knobhead !"

LOL... Yeah you're way wrong there dude

Figerty

Not necessarily true. The octane value of fuel can be a different levels. We have 95 octane petrol here, but you can get 98. In the past some cars ran better on 98 than 95, but most got no benfit from 98.

Likewise with diesel. Additive are added by the various companies such as winter additives etc.

Daniel S

Texaco

Course Cill Dara Abu would pick Esso, he's gotten great value out of that

gpjordanf1

Texaco

650Ginge wrote: »

Complete rubbish.

Gary ITR wrote: »

LOL... Yeah you're way wrong there dude

Yeah? Really??

Prove it?? Yeah thought so!!!!

gpjordanf1

Texaco

Figerty wrote: »

Not necessarily true. The octane value of fuel can be a different levels. We have 95 octane petrol here, but you can get 98. In the past some cars ran better on 98 than 95, but most got no benfit from 98.

Likewise with diesel. Additive are added by the various companies such as winter additives etc.

Ok additives?? Nothing can change the base product. Otherwise we'd have Aldi / Lidl pertrol / diesel selling @ 50c per litre!

So at the end of the day its the same crap being sold by everyone at the same margins with only the knobheads buying the super / ultra / clean version, or as their know in the trade as gullible fools!

650Ginge

Figerty wrote: »

Not necessarily true. The octane value of fuel can be a different levels. We have 95 octane petrol here, but you can get 98. In the past some cars ran better on 98 than 95, but most got no benfit from 98.

Likewise with diesel. Additive are added by the various companies such as winter additives etc.

98 is a lower octane, is it not.

Gary ITR

Tesco

gpjordanf1 wrote: »

Yeah? Really??

Prove it?? Yeah thought so!!!!

What did you think? I have dyno sheets that show the difference Maxol fuel made in my car, I've gotten engine knock on wide open throttle from other brands. It all comes from the same source yes, but by the time it comes to the end user different companies have had a fiddle with it so it's not the same.

gpjordanf1

Texaco

Gary ITR wrote: »

What did you think? I have dyno sheets that show the difference Maxol fuel made in my car, I've gotten engine knock on wide open throttle from other brands. It all comes from the same source yes, but by the time it comes to the end user different companies have had a fiddle with it so it's not the same.

Yes it is, dont kid yourself. And I dont need no dyno sheet for that. You said I was Way wrong dude, so if I was way wrong. there wouldn't be a need for a dyno as this so called proof would be in plentyful demand. But yet like a soon to be Saudi oil Filed, shes dry at the tit lads, as in Nada or not a shred of evidence.

Monty.

No brand name / independent supplier / other

Solnskaya wrote: »

No poll option for "green"? Seems the most popular brand with a lot of people at the mo.:pac:

650Ginge wrote: »

Theres no Texaco either.

Sorry folks missed them, can the poll be amended by a mod to include them and any others missed ?

Monty.

No brand name / independent supplier / other

Figerty wrote: »

Not necessarily true. The octane value of fuel can be a different levels. We have 95 octane petrol here, but you can get 98. In the past some cars ran better on 98 than 95, but most got no benfit from 98.

Likewise with diesel. Additive are added by the various companies such as winter additives etc.

Exactly

Gary ITR

Tesco

gpjordanf1 wrote: »

Yes it is, dont kid yourself. And I dont need no dyno sheet for that. You said I was Way wrong dude, so if I was way wrong. there wouldn't be a need for a dyno as this so called proof would be in plentyful demand. But yet like a soon to be Saudi oil Filed, shes dry at the tit lads, as in Nada or not a shred of evidence.

You're not making a whole lot of sense. Just in case you don't know, my car spends a lot of time on the dyno, over 300 runs now actually and fuel makes a difference. Why don't we take it point by point

Why does my car make more power with Maxol fuel?

Why does my car give me a knock warning on Wide Open Throttle when running Topaz fuel?

If you could answer those two for a start I'd be grateful

gpjordanf1

Texaco

Gary ITR wrote: »

You're not making a whole lot of sense. Just in case you don't know, my car spends a lot of time on the dyno, over 300 runs now actually and fuel makes a difference. Why don't we take it point by point

Why does my car make more power with Maxol fuel?

Why does my car give me a knock warning on Wide Open Throttle when running Topaz fuel?

If you could answer those two for a start I'd be grateful

Oh so you do have Dyno proof??? Coming across a bit schizo there? Which is it? you have proof or not?????

Confusing???

Gary ITR

Tesco

Gary ITR wrote: »

What did you think? I have dyno sheets that show the difference Maxol fuel made in my car, I've gotten engine knock on wide open throttle from other brands. It all comes from the same source yes, but by the time it comes to the end user different companies have had a fiddle with it so it's not the same.

Gary ITR wrote: »

You're not making a whole lot of sense. Just in case you don't know, my car spends a lot of time on the dyno, over 300 runs now actually and fuel makes a difference. Why don't we take it point by point

Why does my car make more power with Maxol fuel?

Why does my car give me a knock warning on Wide Open Throttle when running Topaz fuel?

If you could answer those two for a start I'd be grateful

gpjordanf1 wrote: »

Oh so you do have Dyno proof??? Coming across a bit schizo there? Which is it? you have proof or not?????

Confusing???

I don't see where the confusion is coming from?

Can you answer my questions?

gpjordanf1

Texaco

Gary ITR wrote: »

I don't see where the confusion is coming from?

Can you answer my questions?

Know nothing about your car, so I cannot comment.

But I do know fuel and it hasn't changed in millions of years, I guess your car cant say the same.

Bubble burst??

Jimbob 83

Different base products from different refineries ofc its going to be different depending on where it is being refined

-Chris-

Texaco

@gpjordanf1 - is there any proof that you can supply that all fuel is the same (as it comes out of the pumps)?
It doesn't seem fair to insist on proof from others if you're not supplying proof yourself...

gpjordanf1

Texaco

Jimbob 83 wrote: »

Different base products from different refineries ofc its going to be different depending on where it is being refined

What are the different base products??

Jimbob 83

-Chris- wrote: »

@gpjordanf1 - is there any proof that you can supply that all fuel is the same (as it comes out of the pumps)?
It doesn't seem fair to insist on proof from others if you're not supplying proof yourself...

It's not the same as it is refined and processed in different refineries using different methods in order to get a desired result (Higher Octane/Low Octane/Cleaner burn) etc etc

It doesn't grow on tree's and the industry that makes the chemicals used in the process is a multi billion euro industry in itself

Gary ITR

Tesco

gpjordanf1 wrote: »

Know nothing about your car, so I cannot comment.

But I do know fuel and it hasn't changed in millions of years, I guess your car cant say the same.

Bubble burst??

My bubble is far from burst. The spec of my car doesn't matter because the only variable is where the fuel has come from. when we tune cars we get better results on Maxol, always and that's down to how it detonates.

Like I said already different companies use additives so the fuel is different when it gets to the end user, we made 6BHP on a car today by adding something to the fuel. It's a boards users car so he can verify that.

gpjordanf1

Texaco

-Chris- wrote: »

@gpjordanf1 - is there any proof that you can supply that all fuel is the same (as it comes out of the pumps)?
It doesn't seem fair to insist on proof from others if you're not supplying proof yourself...

I dont see any proof coming to prove otherwise and as a mod I dont see what your problem is with the question??? Provide proof as requested??

I've been driving longer than I care to remember and Ive yet to see a difference or been showing proof of it!

Thats my proof, life experience.

Jimbob 83

gpjordanf1 wrote: »

I dont see any proof coming to prove otherwise and as a mod I dont see what your problem is with the question??? Provide proof as requested??

I've been driving longer than I care to remember and Ive yet to see a difference or been showing proof of it!

Thats my proof, life experience.

Have you been driving the car for millions of years like the way in which fuel is refined hasn't changed in millions of years ?

Jog on Troll :rolleyes:

gpjordanf1

Texaco

Gary ITR wrote: »

My bubble is far from burst. The spec of my car doesn't matter because the only variable is where the fuel has come from. when we tune cars we get better results on Maxol, always and that's down to how it detonates.

Like I said already different companies use additives so the fuel is different when it gets to the end user, we made 6BHP on a car today by adding something to the fuel. It's a boards users car so he can verify that.

So the additives to the fuel made the difference, like I said only knobheads buy that stuff, super fuel, clean fuel, premium fuel, what ever fuel. Its all the same in a standard car.

-Chris-

Texaco

gpjordanf1 wrote: »

I dont see any proof coming to prove otherwise and as a mod I dont see what your problem is with the question??? Provide proof as requested??

I've been driving longer than I care to remember and Ive yet to see a difference or been showing proof of it!

Thats my proof, life experience.

So we have one poster who says he can provide dyno results that show the difference in performance between fuels on his vehicle, and we have another who says there's no difference based on the fact he's never seen a difference.

Who to believe... :rolleyes:

Jimbob 83

Somebody needs a hug in this thread and it isn't me

Gary ITR

Tesco

gpjordanf1 wrote: »

So the additives to the fuel made the difference, like I said only knobheads buy that stuff, super fuel, clean fuel, premium fuel, what ever fuel. Its all the same in a standard car.

The pump fuel makes a difference, additives make an even bigger difference. It's not all the same in a standard car. TBH you've been able to provide nothing but guff and bluster to this topic, have you anything meaningful to add? Or will your ego allow you to take something from it and let you see you've learned something here tonight?

-Chris-

Texaco

gpjordanf1 wrote: »

Petrol is petrol, diesel is diesel, doesn't matter where ya buy it from.

It cannot be manufactured, so quality is down to nature, not brand name!

Anyone who thinks it makes a difference is obviously easily influenced by the media, and as they say " God Bless Them "

The only thing that makes a difference in MPG etc is driving style and as they say dont drive like a " Knobhead !"

gpjordanf1 wrote: »

So the additives to the fuel made the difference, like I said only knobheads buy that stuff, super fuel, clean fuel, premium fuel, what ever fuel. Its all the same in a standard car.

Do you see the difference?

95RON octane is 95 octane petrol, but different petrol suppliers put different additive packages into that petrol and therefore supply different products to the end-user (whether you believe in the effects of those additives again will depend on your experience/research).

The premise of the thread is a fair one imho. I don't know why you're being so dismissive.

gpjordanf1

Texaco

-Chris- wrote: »

So we have one poster who says he can provide dyno results that show the difference in performance between fuels on his vehicle, and we have another who says there's no difference based on the fact he's never seen a difference.

Who to believe... :rolleyes:

Yet to be provided and based on admitted additives.

Please.......

Grade A Modding there!!! :rolleyes:

-Chris-

Texaco

gpjordanf1 wrote: »

Yet to be provided and based on admitted additives.

Please.......

Grade A Modding there!!! :rolleyes:

I'm not modding unless I'm posting in bold (I presume you have sigs turned on, seeing as you have one yourself, and I do make reference to that convention in my sig).

I'm modding now, and I'm saying that I think you're Trolling based on your current posting style.

You'd want to improve the tone of your posting asap or you'll be receiving a ban for Trolling.

Mech1

What effect would atmospheric pressure, ambient air temp, humidity etc have on a dyno result?

zilog_jones

gpjordanf1 wrote: »

But I do know fuel and it hasn't changed in millions of years, I guess your car cant say the same.

Fuel hasn't changed in "millions of years"? How old do you think petrol is? Do you not remember 12 years ago when you could still get leaded petrol? There was no change there? You're demanding proof from other posters yet have absolutely nothing to back your claims? :rolleyes:

I've only switched to a diesel earlier this year, and so far have noticed no discernible difference between Topaz, Maxol, or Texaco, but haven't tried the latter two (or any others) enough yet...

Gary ITR

Tesco

gpjordanf1 wrote: »

Yet to be provided and based on admitted additives.

Please.......

Grade A Modding there!!! :rolleyes:

Are you reading my posts? That was another additive that was put in on top... As for scanning dyno sheets? I think the members in here know me well enough to know I'm not bull****ting and wouldn't expect me to scan sheets at this hour of the night

Le King

Maxol

Gary ITR wrote: »

My bubble is far from burst. The spec of my car doesn't matter because the only variable is where the fuel has come from. when we tune cars we get better results on Maxol, always and that's down to how it detonates.

Like I said already different companies use additives so the fuel is different when it gets to the end user, we made 6BHP on a car today by adding something to the fuel. It's a boards users car so he can verify that.

The fuel is always different as the additives are inconsistently applied. The only consistant fuel that I have found to be good for my car is Maxol E5. The rest are largely inconsistent. Got a savage tank from Tesco two months ago. But 90% of the time I get a really bad MPG from there.

Voted for Esso by mistake.

Gary ITR

Tesco

Mech1 wrote: »

What effect would atmospheric pressure, ambient air temp, humidity etc have on a dyno result?

Not a lot, the dyno takes all of this into account, it has it's own weather station for this very reason. So on a given day with the temp probes in the same positions the results will be the same. If we were to say drop the temp probe into the engine bay the result would be different

We also use a Dyno Dynamics machine which are know to be the most accurate/consistent machines

650Ginge

gpjordanf1 wrote: »

I dont see any proof coming to prove otherwise and as a mod I dont see what your problem is with the question??? Provide proof as requested??

I've been driving longer than I care to remember and Ive yet to see a difference or been showing proof of it!

Thats my proof, life experience.

You have got some attitude. Life experience you are getting on like your 13 years old. Either contribute to the discussion or back down, you're getting a bit boring.

Monty.

No brand name / independent supplier / other

gpjordanf1 wrote: »

I've been driving longer than I care to remember and Ive yet to see a difference or been showing proof of it!

Thats my proof, life experience.

Ok, that's your opinion, but perhaps either you, or your cars, have not noticed the subtle differences other people have, so let them have their say and opinion as well.

Mech1

Gary ITR wrote: »

Not a lot, the dyno takes all of this into account. So on a given day with the temp probes in the same positions the results will be the same. If we were to say drop the temp probe into the engine bay the result would be different

so a dyno takes atmospheric pressure / humidity into account when working out the bhp?

gpjordanf1

Texaco

Ok

So I've rubbed everyone up the wrong way, grand, I'll back off. Apologies all round.

Gary ITR

Tesco

Mech1 wrote: »

so a dyno takes atmospheric pressure / humidity into account when working out the bhp?

It has a weather station there to work out what it needs. I'm not going to give an answer to that question because I'm not 100% sure what it measures or how it does it but I will find out for you on Monday (I'm not the dyno operator)

I have seen cars come in, in the height of winter and make the same power on a warm day though

EDIT: Just found out there, yes our machine does measure Barometric Pressure and Relative Humidity along with the Ambient Temperature

Mech1

on your dyno printouts does it give a correction factor?

like SAE-J1349?

Gary ITR

Tesco

See my edit above

Mech1

what correction factor are you using?

Gary ITR

Tesco

I haven't got that info to hand dude

Midnight_EG

Tesco

I can provide dyno sheets showing difference in fuel from the same place Gary_ITR gets his...157bhp on Topaz and 163 on Maxol E5 if gpfjordan cares so much