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Author Tesco 99 RON super unleaded
Sam
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Registered: 24th Dec 99
Location: West Midlands
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12th Sep 05 at 07:29   View User's Profile U2U Member Reply With Quote
Has anybody tried this stuff out yet?

I've stuck a tenner's worth in the Astra this morning before coming to work, seeing as it's only 2 pence/litre dearer than the normal crap I thought I'd give it a go.

Haven't had a chance to take my car for a proper "test drive" as yet, although it did seem a little more responsive than usual - although in my case the difference is probably psychological as I've only got a 1400cc n/a car!
willay
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Organiser: South East, National Events
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Registered: 10th Nov 02
Location: Roydon, Essex
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12th Sep 05 at 07:43   View Garage View User's Profile U2U Member Reply With Quote
and its an automatic?
Nismo
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Registered: 12th Sep 02
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12th Sep 05 at 07:48   View User's Profile U2U Member Reply With Quote
I run the Rotart on it.
Sam
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Registered: 24th Dec 99
Location: West Midlands
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12th Sep 05 at 08:58   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by willay
and its an automatic?


Oh well.
Cybermonkey
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Registered: 22nd Sep 02
Location: Sydney, Australia
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12th Sep 05 at 10:04   View User's Profile U2U Member Reply With Quote
we get 100RON out the pumps over here, but some say the Caltex Vortex can be as high as 102RON. makes my Camry run a lot smoother when in the upper ranges
Fad
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Registered: 1st Feb 01
Location: Dartford Kent Drives: 330cd
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12th Sep 05 at 10:10   View User's Profile U2U Member Reply With Quote
No fooking point at all

For a start your car is set to run on 97 Ron and the only thing you will get from it is maybe some better fuel economy. You will also find you go through fuel filters more often. I used to fill up with £100 a week of SUL. When my car went barmy we took the fuel filter off to find it was fubared
Cybermonkey
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Registered: 22nd Sep 02
Location: Sydney, Australia
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12th Sep 05 at 10:20   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by Fad
No fooking point at all

For a start your car is set to run on 97 Ron and the only thing you will get from it is maybe some better fuel economy. You will also find you go through fuel filters more often. I used to fill up with £100 a week of SUL. When my car went barmy we took the fuel filter off to find it was fubared


thats bollocks, his car is fitted with a knock sensor, it will retard/advance the timing sequence according to the specific RON value of the fuel. he can throw 91/95/97/98/100/102 or whatever he wants in there and suffer no ill side effects
Fad
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Registered: 1st Feb 01
Location: Dartford Kent Drives: 330cd
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12th Sep 05 at 10:27   View User's Profile U2U Member Reply With Quote
No there is no benifit to running 97/98/99/100 Ron in a standard car except for fuel economy (at a push).

Only cars that will benifit are cars whihc have been mapped to run this fuel not standard Vaux's running standard ECU map

I didnt say there were any ill effects other than going through fuel filters more frequently which is totally independent of the engine
Cybermonkey
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Registered: 22nd Sep 02
Location: Sydney, Australia
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12th Sep 05 at 10:29   View User's Profile U2U Member Reply With Quote
no benefit?? of course there is a benefit. smoother running engine for a start, not to mention the host of additives added to high performance fuels
Ditch
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Registered: 29th Nov 02
Location: St Albans Drives: JDM Celica GT4 WRC
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12th Sep 05 at 10:34   View User's Profile U2U Member Reply With Quote
I will be needing to fill up with this at some time tommorow hopefully...

Jap turbo cars here I come...
Paul_J
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Registered: 6th Jun 02
Location: London
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12th Sep 05 at 11:07   View User's Profile U2U Member Reply With Quote
When I ran on 99 octane my car seemed to rev up slower... feel less responsive than say on 97.

though it did feel like a bigger bang and thus pulled a bit harder in 5th.
Stoneyginger
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Registered: 25th Jan 01
Location: Stonehaven, Aberdeenshire
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12th Sep 05 at 11:52   View Garage View User's Profile U2U Member Reply With Quote
when i ran optimax on my xe i found it overfuelled badly with smoke noticed on hard acceleration so reverted back to 97 ron
burgess
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Registered: 22nd Feb 04
Location: Norton, North Yorkshire
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12th Sep 05 at 11:58   View User's Profile U2U Member Reply With Quote
my cally turbo is slow as fcuk on normal inleaded
stick any super unleaded or optimax etc and feel the difference!
pulls alot stronger
makes me never buy normal petty even tho super costs 105.9p a litre here lmao
Sam
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Registered: 24th Dec 99
Location: West Midlands
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12th Sep 05 at 11:58   View User's Profile U2U Member Reply With Quote
I think mine is smoking slightly today, but unsure whether it's because I put that 99RON stuff in or just because my cat is fucked...

 
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