SuperPlus Is it worth it?
23 January 2000, 10:18 PM
#1
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Hello all,
I can't remeber if I have posted this before (and proptly forgot to look at the replies)
I have a N reg UK Turbo and want to know if it is worth "upgrading" to Super Plus? Is it worth the extra £2.50ish a tank/week. The car is unmodifed and just approaching its 90,000 mile service.
Bye, Dave.
I can't remeber if I have posted this before (and proptly forgot to look at the replies)
I have a N reg UK Turbo and want to know if it is worth "upgrading" to Super Plus? Is it worth the extra £2.50ish a tank/week. The car is unmodifed and just approaching its 90,000 mile service.
Bye, Dave.
24 January 2000, 03:48 AM
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I haven't noticed much difference with 97Ron fuel in a MY98 UK, but I have not performed the fabled ECU reset. As the number of garages selling super are decreasing all the time here I may have no choice anyway.
24 January 2000, 09:54 AM
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I was going to post on this topic anyway so here goes. I was running my MY96 (with Prodrive Performance Pack) on SUL based on, partly, the fact that I was getting about 23mpg from the car whereas my previous car (bog standard MY95) was getting 18mpg at best. So the gains outweighed the extra cost of the petrol.
However, at Cimble I was in Cornwall, on empty, and couldn't find a garage with SUL - and couldn't be bothered to go find one. So in went normal UL and I decided to stay with this for a few tankfuls to see the difference.
So far I am getting exactly the same mpg! This is mainly commuting.
However, the mid-range response is worse - there can be a definite hesitation if I boot it (NOT turbo lag!) and the engine doesn't seem as smooth. So, for the time being I'm sticking with normal UL unless I decide to go for a drive or until I get bored...
Dave
However, at Cimble I was in Cornwall, on empty, and couldn't find a garage with SUL - and couldn't be bothered to go find one. So in went normal UL and I decided to stay with this for a few tankfuls to see the difference.
So far I am getting exactly the same mpg! This is mainly commuting.
However, the mid-range response is worse - there can be a definite hesitation if I boot it (NOT turbo lag!) and the engine doesn't seem as smooth. So, for the time being I'm sticking with normal UL unless I decide to go for a drive or until I get bored...
Dave
24 January 2000, 11:53 AM
#5
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Location: Nottingham with 620BHP & 530lb/ft @1.5bar boost on road fuel.
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The higher the RON rating the more stable the fuel. This means 97RON is harder to ignite than 95RON.
In powerful engines (STis for example) that are running a very high state of tune, anything you can do to help the laws of physics to prevent pre-detonation are advisable. Therefore the higher the octane the better in these instances.
In an unmodified UK car, the state of tune is much lower and the likelihood of predetonation is non existent.
Therefore, there is no reason why you should run on 97RON unless you feel the extra MPG you MIGHT gain outweighs the extra cost of the fuel.
I know some people run 97 RON because they feel they get more MPG but there are as many people that will tell you it doesn't make a blind bit of difference.
So, I wouldn't run a UK car on 97 RON unless it had been modified to run more boost as there is no good reason and is a waste of money.
IM recommend 95 RON afterall.
Kind regards
Ben
In powerful engines (STis for example) that are running a very high state of tune, anything you can do to help the laws of physics to prevent pre-detonation are advisable. Therefore the higher the octane the better in these instances.
In an unmodified UK car, the state of tune is much lower and the likelihood of predetonation is non existent.
Therefore, there is no reason why you should run on 97RON unless you feel the extra MPG you MIGHT gain outweighs the extra cost of the fuel.
I know some people run 97 RON because they feel they get more MPG but there are as many people that will tell you it doesn't make a blind bit of difference.
So, I wouldn't run a UK car on 97 RON unless it had been modified to run more boost as there is no good reason and is a waste of money.
IM recommend 95 RON afterall.
Kind regards
Ben
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24 January 2000, 04:01 PM
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Just an addendum... my MY00 from Holland has "Use Super only, 98 RON" all over the petrol cap and instruction book. I'm sure I could use 95RON, but I know several others with identical cars that get about 3mpg or so less with 95 than 97 (as it is now).
Richard
Richard
25 January 2000, 12:42 AM
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Hello,
Have those of you have have moved to SUL reset the ECU?
If you have not, will the more stable nature of the SUL decreace perfomance? If the ECU is Reset the engine can now remap for the best performance from the higher octane in the SUL.
?????
Have those of you have have moved to SUL reset the ECU?
If you have not, will the more stable nature of the SUL decreace perfomance? If the ECU is Reset the engine can now remap for the best performance from the higher octane in the SUL.
?????
25 January 2000, 12:56 AM
#10
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I've used SUL in my MY95 and it runs a lot smoother then UL, it does seem to make a difference on long trips, it just seems more
responsive on SUL.
Going to France for a long weekend soon and I'm going to run it all the trip on SUL, well it is a lot cheaper in France! (62p litre)
responsive on SUL.
Going to France for a long weekend soon and I'm going to run it all the trip on SUL, well it is a lot cheaper in France! (62p litre)
25 January 2000, 01:36 PM
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I've said it before and I'll say it again. There is no need to do an *ECU reset*. TYhe ECU learns how you driver anyway and adjusts accordingly. Drive like an old woman (commuting for example) - and you'll get an egine that feels *flat* in the mid-range. Put your foot to the floor for 5 or 10 miles and the car will *come alive* again.
All the ECU reset does is put a bunch of default data back into its memory. It will still have to learn (relearn) how the engine is set up now. It cannot do this when the battery isn't connected - only when you drive it.
Dave
All the ECU reset does is put a bunch of default data back into its memory. It will still have to learn (relearn) how the engine is set up now. It cannot do this when the battery isn't connected - only when you drive it.
Dave
25 January 2000, 05:36 PM
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Well said Mr Hutton.
When I drive the car around Dublin city for a few weeks I definitely feel the engine becoming sluggish.
But at the weekend I went down the country on a 160 mile B road trip.
When I was returning the car was absolutely stunning after the 80mph plus speeds all the way.
When I drive the car around Dublin city for a few weeks I definitely feel the engine becoming sluggish.
But at the weekend I went down the country on a 160 mile B road trip.
When I was returning the car was absolutely stunning after the 80mph plus speeds all the way.
27 January 2000, 01:45 PM
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Somebody posted a link to a company that sells a device that increases your fuels Ron.
It sits inline with the fuel pipe, and was only about £40
apparently they fit them standard to UK 22B's
can anyone remember the company ?
Mike
It sits inline with the fuel pipe, and was only about £40
apparently they fit them standard to UK 22B's
can anyone remember the company ?
Mike
27 January 2000, 03:02 PM
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GadjetGurney,
The device you are talking about is called the Broquet fuel catalyst. It is installed in the middle of your fuel line, and through some mysterious unexplained chemical reaction enhances the combustability and stability of the fuel (increases octane). The manufacturers claim improved power, fuel consumption and reduced emissions.
It was first used during WW2 in Spitfire engines operating on the Eastern front, where aircraft were being lost due to engine problems related to poor quality russian fuel.
I'm a sceptic, so if it is so wonderful why aren't car manufacturers installing it in all their line cars which would cost peanuts, rather than investing millions in the development advanced engine management units, computational fluid dynamics sims etc?
Hmmm.... I remain unconvinced.
Anyway, have a look at
The device you are talking about is called the Broquet fuel catalyst. It is installed in the middle of your fuel line, and through some mysterious unexplained chemical reaction enhances the combustability and stability of the fuel (increases octane). The manufacturers claim improved power, fuel consumption and reduced emissions.
It was first used during WW2 in Spitfire engines operating on the Eastern front, where aircraft were being lost due to engine problems related to poor quality russian fuel.
I'm a sceptic, so if it is so wonderful why aren't car manufacturers installing it in all their line cars which would cost peanuts, rather than investing millions in the development advanced engine management units, computational fluid dynamics sims etc?
Hmmm.... I remain unconvinced.
Anyway, have a look at
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