Volks AutosBadger5
Results 1 to 6 of 6
  1. #1
    Neutral

    Status
    Offline
    Join Date
    Mar 2011
    Location
    Exeter
    Posts
    90

    Is switching to 5w40 a good idea?

    Hi. I've got an 56 plate S3 and I've noticed at idle it rattles a little. Only when at operating temperature, its fine when cold. I've read and searched the forum and found loads of topics relating to the TFSI engine sounding like a diesel which I can accept. The only reason I'm questioning my engine is I've drove another S3 the other day it was so smooth and had no rattle at all. Both cars have similar mileage (mine is 45,000 and the other one is 39,000).

    So the question is, Can I swap the oil from 5w30 to 5w40 to try and keep it quiet once warm?
    56 plate 8P S3, Phantom Black, RNSE, Cruise Control, Parking Sensors, Adaptive Bi Xenon Headlights, Interior Light Pack, FBMFSW, Center Arm Rest,

  2. # ADS
    ADS
    Join Date
    Always
    Location
    Global
    Posts
    Many
     
  3. #2
    mjr901's Avatar
    S3 Pollution Plus+ Edition

    Status
    Online
    Join Date
    Nov 2011
    Location
    Worcestershire
    Posts
    2,794
    As far as Im aware, its the injectors that are making the noise mate, so the oil wont do a right lot!

    You must use 504/507 compliant oil.

    These TFSI's need feeding the right stuff!
    2012 Ibis Black Edition S-tronic S3, 3 Door, Shark Stage 2, MTC Intake Kit, Powerflex Fast Road Dogbone Mount, Full Non Res Milltek Exhaust, Forge Development Intercooler + DV system,
    340bhp Mikes Ibis BE 2012 S3...

  4. #3
    NHN
    NHN's Avatar
    Modmetractor

    Status
    Offline
    Join Date
    Jan 2008
    Location
    Coding Something
    Posts
    27,126
    Do not use a different viscosity oil to as specified or you maybe hearing allot louder knocking than you do now, infact maybe none at all.

    OEM RETROFITS - CRUISE CONTROL - SAT NAV - BLUETOOTH - AMI - HEADLIGHT SYSTEMS

    PARKING SYSTEMS - DIAGNOSTICS - FAULT FINDING - BODYWORK - PAINTWORK

  5. #4
    Neutral

    Status
    Offline
    Join Date
    Mar 2011
    Location
    Exeter
    Posts
    90
    Do you really think the outcome could be that extreme?
    56 plate 8P S3, Phantom Black, RNSE, Cruise Control, Parking Sensors, Adaptive Bi Xenon Headlights, Interior Light Pack, FBMFSW, Center Arm Rest,

  6. #5
    NHN
    NHN's Avatar
    Modmetractor

    Status
    Offline
    Join Date
    Jan 2008
    Location
    Coding Something
    Posts
    27,126
    You want to test the theory?

    The movement of the parts can be affected by the thickness, so yes if using the wrong type may cause you more issues.

    OEM RETROFITS - CRUISE CONTROL - SAT NAV - BLUETOOTH - AMI - HEADLIGHT SYSTEMS

    PARKING SYSTEMS - DIAGNOSTICS - FAULT FINDING - BODYWORK - PAINTWORK

  7. #6
    mjr901's Avatar
    S3 Pollution Plus+ Edition

    Status
    Online
    Join Date
    Nov 2011
    Location
    Worcestershire
    Posts
    2,794
    Its a bit like putting "blood type A" into your body when your "blood type B"

    Or asking for Earl Grey tea, and getting Red Label.

    Its just not the same.


    Stick to 0W/30 or 5W/30, advise the latter.

    2012 Ibis Black Edition S-tronic S3, 3 Door, Shark Stage 2, MTC Intake Kit, Powerflex Fast Road Dogbone Mount, Full Non Res Milltek Exhaust, Forge Development Intercooler + DV system,
    340bhp Mikes Ibis BE 2012 S3...

 

 

Similar Threads

  1. FITTING BRAKE LIGHT SWITCH ON 2002 A4 ANY IDEAS????
    By codrock in forum A4/A4 cabriolet/S4 forum(B6 chassis)
    Replies: 3
    Last Post: 22nd July 2009, 21:29
  2. Is this a good idea?
    By I'mRonBurgundy? in forum A3/S3/Sportback (8P Chassis)
    Replies: 4
    Last Post: 1st April 2008, 17:18
  3. diesel tt, good idea?
    By treblesykes in forum TT/TT-S/TT-RS Forum
    Replies: 6
    Last Post: 26th August 2007, 23:38
  4. any good ideas regarding cambelt?
    By vw754 in forum Diesel forum
    Replies: 1
    Last Post: 27th April 2007, 15:42
  5. A good idea for lowered cars? I think so!
    By in forum A3/S3 Forum (8L Chassis)
    Replies: 7
    Last Post: 31st March 2005, 10:47

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Single Sign On provided by vBSSO

Garage Plus, Vendor Tools vBulletin Plugins by Drive Thru Online, Inc.

Content Relevant URLs by vBSEO