95 or 98 ron fuel?

Discussion in 'Engine, Gearbox, Exhaust and Air Intake' started by Siso, Oct 29, 2012.

  1. Siso

    Siso

    Messages:
    70
    Car:
    Renault Clio RS Red Bull Racing RB7 Edition
    Hi everybody. I'm from Slovakia and want to ask you which fuel a have to use in my clio200? In my technical licence stay that i have to use 98 and higher fuel but on german official renault site is written that i can also use the 95 ron but there would be little decrease of power (5%?) . Now im using OMW 95 MaxxMotion, so should i tank the other one (98 and higher)? If is it really nessesary to do that. My car has only 600km so pushing it only to 4000rpm. Thanks for advices and help :smile:
     

  2. Willis

    Willis The Gatekeeper Platinum Member

    Messages:
    6,552
    Location:
    Altrincham
    Car:
    Honda Civic EP3 Type-R
    I've only ever used Shell V-Power which is 98RON.

    I think maybe I've used BP Ultimate once, which is 97RON, in an emergency.
     
  3. GrumpyTwig

    GrumpyTwig "the troll hunter" with added boost!

    Messages:
    4,073
    Location:
    Yorkshire
    The ECU will manage with 95 but as suggested it will mean will generally lead to a slight power decrease.

    A lot of people find they run worse from cold on 95 as well.
     
  4. Paddy_R

    Paddy_R Platinum Member

    Messages:
    1,904
    Location:
    East coast, Northern Ireland
    Car:
    RS 200 FF (red)
    It's BP Ultimate (97 RON) for me in Northern Ireland as you can't get any higher.
     
  5. steve11

    steve11

    Messages:
    569
    Location:
    Oz
    Car:
    CLIO RS200-T & MEGANE RS275-R
    Only use VPower or Ultimate, both are 98 octane here.
    We do have Vpower racing 100 octane but Shell are phasing it out now.
     
  6. Olo

    Olo

    Messages:
    29
    Location:
    Tahiti, French Polynesia
    Car:
    Clio R27
    Only have SP95 in my country and it is pretty hot and humid.
    Still work great ;0)
     
  7. ryan197

    ryan197 POW right in the kisser Platinum Member

    Messages:
    3,175
    Location:
    Costa Del Coseley
    Car:
    Megane 279
    ower is 99 ron not 98 ron
     
  8. Chrisgti6

    Chrisgti6 East Midlands Rep.

    Messages:
    1,575
    Location:
    South Normanton, Derbyshire
    Car:
    300hp Volvo S40
    I try to use Tesco Momentum when possible. Rest of the time shell std 95. I can't really tell a difference to be honest. You'd be hard pushed to notice a 5% difference in day to day driving.
     
  9. Matt W

    Matt W

    Messages:
    1,126
    Location:
    S.Wales
    Car:
    Renaultsport Megane 250
    Mine seemed to run even better again on 102ron. Probably just in my head though after paying 1.8 euros a litre.
     
  10. Foxspeed

    Foxspeed "the new red baron" Moderator

    Messages:
    15,472
    Location:
    sat behind a laptop over-moderating...
    Car:
    ford mustang shadow gt v8
    higher number is better :thumbup1:
     
  11. Mentalpen

    Mentalpen Guest

    Higher the Ron greater the compression and bigger the bang.

    In simples terms.

    It's also cleaner and better for the engine
     
  12. Foxspeed

    Foxspeed "the new red baron" Moderator

    Messages:
    15,472
    Location:
    sat behind a laptop over-moderating...
    Car:
    ford mustang shadow gt v8
    engine compression is constant!

    its "ignition advance" that is increased to create more torque (up to a point that is)
     
  13. ben_r1

    ben_r1

    Messages:
    3,469
    Location:
    Essex
    Car:
    Evo
    Same topic has been discussed to death here and CS. I know most ( including myself ) would recommend only 97-98 and above but to be honest I've run it on 95 before and it still ran smoothly and pulled well.

    I bet there 197s out there that have never seen above 95!
     
  14. Mentalpen

    Mentalpen Guest

    My bad or should that be 5th gears.

    Note to self. Don't believe everything you see on the tv.
     
  15. KalahariFerrari

    KalahariFerrari

    Messages:
    53
    Location:
    Johannesburg, South Africa
    Car:
    Clio 197
    like we only get 93 and 95 in our country... 98 was phased out YEARS ago here. so in a emergency we have to do with 93... :worried:
     
  16. ben_r1

    ben_r1

    Messages:
    3,469
    Location:
    Essex
    Car:
    Evo
    Canada goes under 90s. I think they're normal is 87.

    And in Japan I think it's all 102RON. Still they do limit all cars to 112mph :worried:
     
  17. philmots

    philmots

    Messages:
    245
    Location:
    Leeds
    I've used Tesco 99 in mine since I've had it but I got sick of all the retards in the Tesco. So I went to the Shell that's opened recently round the corner today and brimmed it with V-Power and it's like a different car.. So much smoother I was very very surprised.
     
  18. Foxspeed

    Foxspeed "the new red baron" Moderator

    Messages:
    15,472
    Location:
    sat behind a laptop over-moderating...
    Car:
    ford mustang shadow gt v8
    thats because they are simpletons......
     
  19. BenW

    BenW

    Messages:
    3,969
    Location:
    Leamington Spa
    Car:
    E92 M3
    I don't really notice any difference between 95/97/98/99 in terms of performance. Cold start is better on the higher octane fuels and sometimes I think it runs slightly smoother.

    Most of the time I put premium in mine but it's really just to make sure the engine stays clean more than anything else.
     
  20. Paddy_R

    Paddy_R Platinum Member

    Messages:
    1,904
    Location:
    East coast, Northern Ireland
    Car:
    RS 200 FF (red)
    Thought I should mention this, Shell V Power is different in different countries. In the UK it's 99 RON though in some places it's only 95 RON. It's always worth checking at the pump as it nearly always says there the actual octane rating of the fuel.

    On a side note Tesco fuel is total rubbish, I would (and don't) even put it in my lawn mower!!
     

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