Clubjazz - Honda Jazz & HR-V Forums
Honda Jazz Forums => Honda Jazz Mk2 2008-2015 => Topic started by: xoman on August 02, 2020, 08:15:16 PM
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Had my 2009 1.4 ex for a whole year, and been filling it up with shell v power, and I always had this small juddering when I lift off. This on happens, if I didn't lift off the clutch at the exact way that the engine wanted it.
I always thought hat was an issue with the engine or clutch or something.
that is until I started filling it up with cheap sainbury's supermarket fuel 3 months ago, and all of a sudden, the small juddering disappeared completely!
Does anyone have similar issue?
PS.
unforunately someone bumped into the back of me, and the car is a write off... now I am looking for a new honda jazz...
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Yes, I noticed this behaviour in my 1.4 Civic (same engine as your Jazz), I still used V-Power mostly as the engine seemed smoother and the low speed torque was better - well that is what I thought!
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Had my 2009 1.4 ex for a whole year, and been filling it up with shell v power, and I always had this small juddering when I lift off. This on happens, if I didn't lift off the clutch at the exact way that the engine wanted it.
I always thought hat was an issue with the engine or clutch or something.
that is until I started filling it up with cheap sainbury's supermarket fuel 3 months ago, and all of a sudden, the small juddering disappeared completely!
Does anyone have similar issue?
PS.
unforunately someone bumped into the back of me, and the car is a write off... now I am looking for a new honda jazz...
Do you use a lot of injector cleaners like Redex or Techron?
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Ah - the old supermarket fuel debate!
I admit I am as neurotic about this as the next OCD sufferer.
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Ah - the old supermarket fuel debate!
I admit I am as neurotic about this as the next OCD sufferer.
Fuel is like religion and politics - should not be discussed on forums.
My mate suffers from CDO, he says it is like OCD but the letters are in alphabetical order - just as they should be.
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Ah - the old supermarket fuel debate!
I admit I am as neurotic about this as the next OCD sufferer.
I know but the CVT definitely holds onto ratios better on V-Power, it climbs hills around me without changing down which it doesn't do on ordinary 95RON petrol so I'm a believer!
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Yes, I noticed this behaviour in my 1.4 Civic (same engine as your Jazz), I still used V-Power mostly as the engine seemed smoother and the low speed torque was better - well that is what I thought!
That is what my wife thought as well, and she didn't even know I had filled her Jazz up with V-power instead of her normal supermarket fuel. She asked me if i had 'tuned' her car.
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Ah - the old supermarket fuel debate!
I admit I am as neurotic about this as the next OCD sufferer.
I know but the CVT definitely holds onto ratios better on V-Power, it climbs hills around me without changing down which it doesn't do on ordinary 95RON petrol so I'm a believer!
Yes - I can get that because in addition to any additives V Power might have, it is a high octane fuel. I guess the real debate is between, say, Sainsbury's 95 RON and Shell's 95 RON but the debate is never framed in that way. I can completely accept that V Power is a superior fuel but is branded 95 RON better than supermarket 95 RON?
Culzean is right. It's a "politics and religion" thing.
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I've never noticed any difference between supermarket and branded 95RON petrol.
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Had my 2009 1.4 ex for a whole year, and been filling it up with shell v power, and I always had this small juddering when I lift off. This on happens, if I didn't lift off the clutch at the exact way that the engine wanted it.
I always thought hat was an issue with the engine or clutch or something.
that is until I started filling it up with cheap sainbury's supermarket fuel 3 months ago, and all of a sudden, the small juddering disappeared completely!
Does anyone have similar issue?
PS.
unforunately someone bumped into the back of me, and the car is a write off... now I am looking for a new honda jazz...
Do you use a lot of injector cleaners like Redex or Techron?
No, I didn't put any of those in there at all.
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Nevermind then, I have noticed that using some additives in premium fuel (Shell, Esso and BP) can have negative effects so what you describe is exactly what I would observe if that was the case.
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I've never noticed any difference between supermarket and branded 95RON petrol.
Ditto. And I keep extensive records and find zero difference in fuel consumption.
So as far as I am concerned, the facts say it is not worthwhile.
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https://www.asda.com/about/instore/petrol-stations
Thought this was interesting. Asda going on the attack about their fuels indicating that they exceed UK and European standards and stating "There is no such thing as supermarket fuel."
Actually Asda is the one supermarket fuel I've never used - not out of choice necessarily but I don't live near one of their fuel stations.
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As the link says:
Adding Extra
Testing fuel for quality is only part of the process. Asda fuel includes specially formulated additives and detergents, which keep your engine clean and improve engine efficiency.
Fights harmful deposits / protects your engine:
Protects the intake system in the engine by forming a protective fluid film, which prevents the build-up of deposits and can remove existing deposits. The dispersants help stop the build-up of contaminates
Has detergents which help clean the inside of the engine
Has anti-corrosion agents which protect metallic parts
Improves performance / helps restore fuel economy:
The cleaning additives can help restore power. When the injectors are cleaned, they work efficiently and can provide maximum flow and a fine spray needed for the efficient combustion of fuel
I think you will find that the other major supermarket chains supply exactly the same product.
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https://www.asda.com/about/instore/petrol-stations
Thought this was interesting. Asda going on the attack about their fuels indicating that they exceed UK and European standards and stating "There is no such thing as supermarket fuel."
Actually Asda is the one supermarket fuel I've never used - not out of choice necessarily but I don't live near one of their fuel stations.
I've used Asda in many different cars over the years and it's just the same driving experience as all the rest of the 95RON suppliers.
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I'm gradually coming round to the view that supermarket fuel is fine. I think I've fallen for a lot of the clever marketing and various conspiracy theories on the internet.
I used to use it without a second thought!
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It might be that the major factor is particular station throughput, more petrol sold = more fresh stock.
I however believe in no ethanol so Esso Supreme for me :)
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We cannot buy non-ethanol fuel in Scotland, and a large part of England is the same. Great you can get it in your local.
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It might be that the major factor is particular station throughput, more petrol sold = more fresh stock.
I however believe in no ethanol so Esso Supreme for me :)
Esso Supreme contains 5% ethanol in southwest England (stated on esso website).
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There are very few parts of the country where ethanol is not added. I don't know why some areas are exempt.
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My recent experience with ethanol in fuel is that although it may state 5% ethanol at the pump the reality is that it's actually less. I found this out because up until last year I had a Ducati motorcycle that was fitted with a plastic fuel tank and it was common knowledge amongst owners, particularly those in parts of the USA that the ethanol fuel was damaging the fuel tanks.
I was curious about the fuel we had in this country and also concerned about potential damage to my bike, as a result I bought an 'Ethanil' fuel testing kit. Over several months I got fuel from several different local petrol stations and found that for the most part the ethanol content was less than five percent, usually around 2 or 3%, and never above 4%. I also found that the local BP garage Ultimate 97 octane was lower than 2%. I can't vouch for the ultimate accuracy of these tests, I just followed the instructions as per the 'Ethanil' kit. Needless to say I always used BP Ultimate whenever possible.
For the most part I'm refuelling my Jazz at Tesco using the 95ron cooking fuel. It runs fine.
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For anyone who wants to check how much ethanol is in petrol, it is easy enough measured.
https://www.delphiautoparts.com/gbr/en/toolbox/how-test-alcohol-content-gasoline (https://www.delphiautoparts.com/gbr/en/toolbox/how-test-alcohol-content-gasoline)
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Ever since I got my Jazz, I've been putting only Esso Supreme in it but few weeks back I had no choice but to fuel up on local not-very-frequented Texaco station. The next day I noticed it has lost a bit of an edge in the way it was responding.
Again, I blame shelf-life of modern petrol to which ethanol will contribute in a significant way as it will draw moisture even from the air.