Page 3 of 5 FirstFirst 12345 LastLast
Results 21 to 30 of 50
  1. #21
    Join Date
    Oct 2005
    Location
    Helsinki, Finland
    Posts
    8,001
    Liked
    5
    BP Ultimate is the worst here. No-one touches it. Several instances of unwell Skylines...

  2. #22
    S15R Guest
    anyone here use 5% or 10% Ethanol on their car?

  3. #23
    paulphot Guest
    I won't be testing it yet, other mods to do first. The MRT report showed that BP Ultimate actually had the lowest octane reading of the 98RON stuff. Read something like 97.4. It also provided the least power under a controlled test compared to Optimax and Caltex Vortex 98. There was something like 8kw ATW difference between BP and Vortex. They then did another run with E10 and got another 5kw ATW over the Vortex.

  4. #24
    Modder_J Guest
    Is it possible to run the S15 on 95 RON ?

    There's only one pump on the island that pumps out 98 RON and its emptied quite often (only 1 shipment of SUL per month) from Subaru's and Evo's needing it.

  5. #25
    Autech_NZ Guest
    Yes it is possible to run them on 95, probably not best especially if yours is a turbo model or highly modded.

    and it is probably best to reset your ecu if you want to change down to 95 permanently so it can 'Learn' again. Or get it tuned on 95 would be even better for the car if you cant get 98 all the time.

  6. #26
    S15R Guest
    Autech S15's should run 100RON+, they were tuned for jap fuel only isnt it?

  7. #27
    Join Date
    Oct 2005
    Location
    Helsinki, Finland
    Posts
    8,001
    Liked
    5
    You can't run JDM S15s on 95RON with an ECU remap. I wouldn't recommend less than 97 though, even with a remap. The S14 was mapped for 95 in Europe. Fuel economy and performance increased if you ran it on 97+...

  8. #28
    Join Date
    Nov 2005
    Location
    Australia
    Posts
    256
    Liked
    0
    I think there has been some testing done with different ethanol mixes on a dyno with ecu tuning by MRT, I'll try dig up the article if anyone is interested.

    My car is tuned on 98RON BP Ultimate and never had any problems, besides the ever increasing fuel prices :P

  9. #29
    Join Date
    Oct 2005
    Location
    Helsinki, Finland
    Posts
    8,001
    Liked
    5
    I run either Opti (99.9p/litre - $2.50/litre) or Tesco 99 (97.9p/litre - $2.45/litre).

  10. #30
    S15R Guest
    we only have 95RON when the s15 came out in nz

    jdm s15 were running ok with 95RON and nissan recommended 95 RON too

Similar Threads

  1. Fuel Rail
    By C1TPT in forum General S15 Chat
    Replies: 8
    Last Post: 06-12-2009, 14:13
  2. Fix fuel cut?
    By daniel83 in forum Mechanical & Bodywork
    Replies: 4
    Last Post: 20-04-2009, 21:38
  3. Fuel Pressure
    By R3N in forum General S15 Chat
    Replies: 3
    Last Post: 09-11-2008, 12:42
  4. new fuel pump
    By DeanS15 in forum Mechanical & Bodywork
    Replies: 7
    Last Post: 06-06-2008, 02:46
  5. S15 Fuel systems
    By GUEST_JDM in forum Mechanical & Bodywork
    Replies: 17
    Last Post: 18-05-2008, 10:17

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •