Author Topic: Danger of increased carbon build up with 100 octane if not up-tuned?  (Read 170 times)

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Offline Chchgti35

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  • 2012 Mk6 GTi 35 edition
Have been using 100 octane for some months now, engine tune hasn’t been changed from stock as concerned about warranty issues (VW dealer used car warranty), is there a likelihood of increased carbon buildup if running 100 octane with stock tune ?

Offline Naekyr

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Re: Danger of increased carbon build up with 100 octane if not up-tuned?
« Reply #1 on: August 15, 2019, 07:43:16 pm »
Would have thought there would be less carbon

Offline ziptie.nz

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Re: Danger of increased carbon build up with 100 octane if not up-tuned?
« Reply #2 on: August 15, 2019, 07:56:14 pm »
Have been using 100 octane for some months now, engine tune hasn’t been changed from stock as concerned about warranty issues (VW dealer used car warranty), is there a likelihood of increased carbon buildup if running 100 octane with stock tune ?

It wont make any difference.

Carbon build up is symptomatic of Direct Injection not Octane Levels.
MK2 GTI 16v, MK2 TDI - Rollin' Coal, Audi V8 Quattro, Audi A3 Sportback 2.0 TDI

Offline mark2 golf

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Re: Danger of increased carbon build up with 100 octane if not up-tuned?
« Reply #3 on: August 16, 2019, 07:20:01 am »
Just make sure its not leaded. I was told the av spec 100 octane still has lead.
89 mk2 1.8t
97 mk3 gti 1.8t
02 Allroad tdi
99 s430 merc
90 190e 2.6

Offline ziptie.nz

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Re: Danger of increased carbon build up with 100 octane if not up-tuned?
« Reply #4 on: August 17, 2019, 07:23:31 am »
Just make sure its not leaded. I was told the av spec 100 octane still has lead.

There is a difference between AV gas, NPD’s 100 is a widely available fuel in the south island it is definately unleaded

I am fairly certain it is illegal to pump Leaded fuel directly in to cars or use it on the road, which is why when buying “Race Gas” or AV1 you need to put it in to a fuel container and only run it when you are at “the track”

Pretty certain most actual aviation fuel is still leaded because of its Stability in the environment it is used
MK2 GTI 16v, MK2 TDI - Rollin' Coal, Audi V8 Quattro, Audi A3 Sportback 2.0 TDI