[smrtech]

So the owners manual recommends adding a fuel cleaner /additive after each oil change?
I would guess this is because of the GDI engines (I have 2.0T on my Sport).

Couple of questions:

1) What would this be exactly? Is it just any old fuel treatment from Pep Boys, etc. ?

2) Is this really even necessary with today's gas formulations?

I assume using high quality detergent gasoline makes this unnecessary really. What do other think?
I always use name brand gas. Some have the "Top-Tier" rating (ie, Costco) but this is mostly
a marketing gimmick and rarely notice a difference in gas quality.

 

[bdozer]

I just bought an 18 2.0 AWD, but I won't be doing that. I could see it maybe every 30K miles or something. The problem with GDI engines is that the fuel is sprayed directly into the cylinder so the intake valves no longer get a fuel spray.

 

[smrtech]

Yes, really shouldn't be needed if you use quality gas. I found this on Amazon,
and as I thought, it's just the Techron based cleaner for the values. I doubt
it would hurt anything. I'll be curious what the dealer says when I do the first
Oil change.

Look for Hyunda Fuel System Cleaner on Amazon, it exists.

Ha, $27 - just the same Techron stuff which is like $7, also on Amazon
or Pep Boys or wherever....

I did have a 2001 Saab that blew up the values with carbon deposits, but GDI/Turbo
has come a long way since that and so has gas quality.

 

[dghii]

Just added techron to our 2017 SFS 2.0T for the first time prior to road trip. I use it occasionally on our cars...maybe once a year or so.