Author Topic: How to avoid carbon build up  (Read 401 times)

0 Members and 1 Guest are viewing this topic.

Offline Chchgti35

  • Posts: 17
  • 2012 Mk6 GTi 35 edition
How to avoid carbon build up
« on: September 09, 2017, 06:49:25 pm »
Hi there, have just purchased 2012 NZ new GTI 35 edition, what's the best way to avoid carbon build up ? Will be running it on minimum 95 octane, will periodic high revs be helpful and proper warm up?

Offline Naekyr

  • *
  • *
  • Posts: 114
Re: How to avoid carbon build up
« Reply #1 on: September 10, 2017, 08:20:23 am »
98 + smashing it once per day does the job (but dunno the specifics, like what revs you have to get up to and how long to hold it for)

I generally do this several times a week just to hear my exhaust talk but it's only doing 5000rpm for maybe 2-3 seconds, unsure if its enough time to clean the carbon out - rest of the time its in drove mode doing 2000rpm

I don't think the octane is a big issue. but 98 technically will be a bit cleaner than 95 plus you get slightly more mileage and power
But don't put anything less than 95 in the GTI unless you want problems
« Last Edit: September 10, 2017, 08:32:10 am by Naekyr »

Offline jasegti

  • Posts: 57
Re: How to avoid carbon build up
« Reply #2 on: September 10, 2017, 09:39:13 am »
Yup same here I use nothing but 98 , We tend to go on a good drive at least once a month.

Offline ziptie.nz

  • ##
  • **
  • Posts: 3924
Re: How to avoid carbon build up
« Reply #3 on: September 10, 2017, 03:31:22 pm »
Honest Answer is to buy a car that doesn't use Direct Injection.

Offline Chchgti35

  • Posts: 17
  • 2012 Mk6 GTi 35 edition
Re: How to avoid carbon build up
« Reply #4 on: September 10, 2017, 03:52:22 pm »
Thanks folks, no worries on the sub 95 octane score we use this on all of our cars. No fuel additives recommended or is this a No No?

Offline jasegti

  • Posts: 57
Re: How to avoid carbon build up
« Reply #5 on: September 10, 2017, 04:50:46 pm »
No fuel additives recommended or is this a No No?

Nitrous would make the missus zoom  ;D

Offline Chchgti35

  • Posts: 17
  • 2012 Mk6 GTi 35 edition
Re: How to avoid carbon build up
« Reply #6 on: September 10, 2017, 05:49:35 pm »
 :) :) :) :)
Nitrous would make the missus zoom  ;D

Offline McDoof

  • ***
  • ***
  • Posts: 701
Re: How to avoid carbon build up
« Reply #7 on: September 11, 2017, 09:08:24 am »
Honest Answer is to buy a car that doesn't use Direct Injection.

Exactly this. Because the car is direct in injection, there is no fuel wash in the intake manifold. There is no way to prevent carbon build up over time. It's just part of the deal with DI
NZ New MK5 GTI - Tuned by HSP Tuning

Offline GLIDN

  • ##
  • **
  • Posts: 4605
Re: How to avoid carbon build up
« Reply #8 on: September 11, 2017, 01:10:02 pm »
Hi there, have just purchased 2012 NZ new GTI 35 edition, what's the best way to avoid carbon build up ? Will be running it on minimum 95 octane, will periodic high revs be helpful and proper warm up?

There are ways to assist minimizing the build up, but still not preventive.
Catch can's don't really help all that much.

Look at removing the PCV system entirely, not a PCV block off plate either
If you feel that way inclined.

Also you will note with 95 octane, the car will be running higher than usual knock. Due to the lower octane rating.]
send me a PM if you need anymore assistance etc.
Top Secret Project
MK3 GTI 16v Tornado Red - under the knife soon
Mk3 12v VR6 Variant
MK5 GTI DSG - Unitronic Stage 1 | Stage 1 DSG | Unitronic Intake |Tuned by HSP Tuning |
MK6 GTI DSG -  Unitronic Stage 2 | Stage 1 DSG | Unitronic Intake

Online 00quattro00

  • ###
  • ***
  • Posts: 5320
Re: How to avoid carbon build up
« Reply #9 on: September 11, 2017, 03:10:32 pm »
Honest Answer is to buy a car that doesn't use Direct Injection.

Yep, they should go back to kjet
Land Rover Discovery 300tdi
Land Rover 110 4bd1t

Offline ziptie.nz

  • ##
  • **
  • Posts: 3924
Re: How to avoid carbon build up
« Reply #10 on: September 11, 2017, 03:19:05 pm »
Yep, they should go back to kjet

It was good enough for Nazi Tanks, no reason its not good enough for Modern Cars!

Offline McDoof

  • ***
  • ***
  • Posts: 701
Re: How to avoid carbon build up
« Reply #11 on: September 11, 2017, 03:46:58 pm »
NZ New MK5 GTI - Tuned by HSP Tuning

Offline Chchgti35

  • Posts: 17
  • 2012 Mk6 GTi 35 edition
Re: How to avoid carbon build up
« Reply #12 on: October 01, 2017, 01:48:35 am »
Yep, they should go back to kjet
Thanks,  have just filled the tank with 98 and was surprised to see the consumption drop markedly in a short time, leading me to believe the tank we just went through ex Dealership was most likely 91 octane. No great surprises there as they obviously would have no long term investment in the health of the engine. Love the sport mode itís a dramatic mood change.

Offline Naekyr

  • *
  • *
  • Posts: 114
Re: How to avoid carbon build up
« Reply #13 on: October 01, 2017, 08:49:39 am »
91? damn that, you'd get engine knock straight away

Offline ziptie.nz

  • ##
  • **
  • Posts: 3924
Re: How to avoid carbon build up
« Reply #14 on: October 02, 2017, 07:48:50 am »
91? damn that, you'd get engine knock straight away

Only if you were driving with your foot flat every where, oh wait were talking about a DSG Golf Driver.. that all they seem to know how to do.