Hi

 

I put in RON91 instead of RON95 by mistake in my Karoq; and will have to take out the gas.
Does anyone know what type of anti-siphon is fitted to the MY23 Karoq - is it the ball flap or the mesh; or perhaps both?

 

I am planning to siphon out the fuel; but don't want to damage any fitting.

Do you have to take it out?  Couldn’t you just run it down, say 1/4 tank at a time and gradually enrich the fuel in the tank?  Even if that means using the highest octane fuel you can get.  It’s not like you put diesel in.

Edited 12 July, 20232 yr by DSL

40 minutes ago, DSL said:

Do you have to take it out?  Couldn’t you just run it down, say 1/4 tank at a time and gradually enrich the fuel in the tank?  Even if that means using the highest octane fuel you can get.  It’s not like you put diesel in.

Hi DSL

Thanks for your response. That is something I have considered.

But it appears the MY23 Sportline has a PPF , which doesn't play well with the 91. Also read somewhere that the engine components may suffer damage.
From here -
" The Sportline requires 95 RON petrol because it has a petrol particulate filter."
It might be alright for one wrong load; but the hesitation for me here is to avoid damage.
 

Hmmmm, I’ve no experience of petrol particulate filters.   Plus ISTR the fuel spec is for gow the engine is tuned, it might not be as smooth with a lower grade.  I’m assuming you’re in somewhere like Aus or Canada that has 91 RON.  If it was me I’d still try the dilute down approach, I wouldn’t have thought one load of lower grade fuel would be catastrophic, the advice could point to long term woes if you kept putting in the cheap juice.

 

Mind you, siphoning it out would give you several years of lawnmower petrol! 

 

But someone will hopefully be along that actually knows about such things. 👍

No need to remove the fuel, the engine will adapt by reacting to the signals from the knock sensor in exactly the same way that it does when using the specified fuel

If its Australia then the problem with 91 RON is the very high sulphur content which will affect the PPF

https://www.drive.com.au/news/what-is-a-petrol-particulate-filter-and-which-cars-have-them-in-australia/

Edited 12 July, 20232 yr by NottsIan

15 minutes ago, NottsIan said:

If its Australia then the problem with 91 RON is the very high sulphur content which will affect the PPF

https://www.drive.com.au/news/what-is-a-petrol-particulate-filter-and-which-cars-have-them-in-australia/

Yep from Oz - that is the concern, question is how much damage one tank would do..

@Ari19welcome.  Are you certain that your car has a GPF (OPF) in Australia?   For some reason in the UK where it is petrol we buy they are Gasoline Particulate Filters.     Edit.  Sorry I see your link now.    So do you have a 1.4 TSI with or without ACT, and has it an 8:speed auto, not a DSG?

Edited 12 July, 20232 yr by toot

1 hour ago, toot said:

@Ari19welcome.  Are you certain that your car has a GPF (OPF) in Australia?   For some reason in the UK where it is petrol we buy they are Gasoline Particulate Filters.     Edit.  Sorry I see your link now.    So do you have a 1.4 TSI with or without ACT, and has it an 8:speed auto, not a DSG?

It's a 2.0 TSI, with DSG-
https://www.skoda.com.au/models/karoq-family/karoq-sportline

As per No.2, just run it through with top ups along the way.

As soon as you can put highest grade you can in to top it up

 

Then do it again when got about quarter to third of tank available.  Keep using the high grade until you have added about double the volume of low grade as it will dilute it.

 

One partial tank full won't really be a problem