Page 1 of 2 12 LastLast
Results 1 to 10 of 19

Thread: Pinking and BP ultimate.

  
  1. #1
    Status
    Offline
    SXIScot's Avatar
    AOC Regular
    Join Date
    Jun 2004
    Posts
    247
    Mentioned in
    0 Post(s)
    Quoted
    0 Post(s)

    Pinking and BP ultimate.

    Has anyone else suffered from pinking when using BP ultimate and does pinking only occur when the engine is warm?

  2. #2
    Status
    Offline
    Steve's Avatar
    AOC Obsessed
    Join Date
    May 2003
    Posts
    5,062
    Mentioned in
    1 Post(s)
    Quoted
    0 Post(s)
    I've used BP Ultimate, not experienced that problem, but the car didn't run too well on it. I normally use Optimax, but coming back from the Pod on fumes I tanked it up with BP Ultimate, never again!

  3. #3
    Status
    Offline
    jonstatt's Avatar
    AOC Regular
    Join Date
    Apr 2004
    Posts
    255
    Mentioned in
    0 Post(s)
    Quoted
    0 Post(s)
    Don't all the recent Astra engines have anti-knock sensors. Therefore shouldn't pinking be impossible?

    Jonathan

  4. #4
    Status
    Offline
    Steve's Avatar
    AOC Obsessed
    Join Date
    May 2003
    Posts
    5,062
    Mentioned in
    1 Post(s)
    Quoted
    0 Post(s)
    Quote Originally Posted by jonstatt
    Don't all the recent Astra engines have anti-knock sensors. Therefore shouldn't pinking be impossible?

    Jonathan
    All fuel injected modern cars have anti-knock, but it only prevents 'knock'. It will still cut the engine back to protect it, so the car will be 'flat', just like a knocking engine would be

  5. #5
    Status
    Offline
    Jass's Avatar
    AOC Regular
    Join Date
    Feb 2004
    Posts
    199
    Mentioned in
    0 Post(s)
    Quoted
    0 Post(s)
    I car used to ping due to the crappy tuning that was on it :|

  6. #6
    Status
    Offline
    SXIScot's Avatar
    AOC Regular
    Join Date
    Jun 2004
    Posts
    247
    Mentioned in
    0 Post(s)
    Quoted
    0 Post(s)
    About this pinking I'm getting, I've just filled up with normal Shell unleaded, how many tankfulls will it take the pinking to stop, and if it still happens is it only a faulty knock sensor at fault, or could other things cause it?

  7. #7
    Status
    Offline
    jonstatt's Avatar
    AOC Regular
    Join Date
    Apr 2004
    Posts
    255
    Mentioned in
    0 Post(s)
    Quoted
    0 Post(s)
    When are you getting this pinking? At high revs or low revs? Only under full throttle?

  8. #8
    Status
    Offline
    adamduk's Avatar
    AOC Fanatic
    Join Date
    Jul 2003
    Posts
    806
    Mentioned in
    0 Post(s)
    Quoted
    0 Post(s)
    Optimax gives me terrible fuel economy, and Ultimate doesn't seem to do much and is very expensive.

    I found Sainsburys Super Unleaded to be the best one so far...

    Filled up with Tesco Unleaded over the weekend and the engine was rough! :|

  9. #9
    Status
    Offline
    Boro Paul's Avatar
    AOC Regular
    Join Date
    Aug 2003
    Posts
    275
    Mentioned in
    0 Post(s)
    Quoted
    0 Post(s)
    Out of all the fuel I find mine runs best on standard Esso, filled up with ultimate twice, a week ago put in some stp, did 670 odd miles but the car is really flat at the moment, got a nasty flat spot at the low end as well, going to use up all thats left in the tank then go back to Esso.
    I've fitted a new fuel filter, air filter, spark plugs and cleanded out the throttlebody so I'm hoping its the fuel or fuel plus the stp causing it as the same happened to our zafira after using ultimate and stp fuel cleaner.
    Astra is a 1.6 8V & zafira 1.6 16V.

    :?
    Wants an Arden Blue GSI

    Now!!!!!!!

  10. #10
    Status
    Offline
    SXIScot's Avatar
    AOC Regular
    Join Date
    Jun 2004
    Posts
    247
    Mentioned in
    0 Post(s)
    Quoted
    0 Post(s)
    Quote Originally Posted by jonstatt
    When are you getting this pinking? At high revs or low revs? Only under full throttle?
    Mainly when changing gear, I hear it at the biting point, when the engine is warm and mainly changing between 1st and 2nd and between 2nd and 3rd.

Page 1 of 2 12 LastLast

Similar Threads

  1. what could be the cause of my pinking
    By purple pride in forum Turbo Petrol Engines inc. Transmissions
    Replies: 21
    Last Post: 07-10-2006, 21:02

Posting Permissions

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