[Tampa8]

Don't do it. And don't fall for a one post poster with no information advertising for a product.

I would follow recommendations from Valvoline, Amsoil and others, NO additives should be added in oil in today's close tolerance engine cars. Been discussed in many threads so I won't go through it all again....

Do Engine Oil Additives Work? - AMSOIL Blog

Our testing revealed red flags with two leading oil additives. Find out if engine oil additives really work here.

blog.amsoil.com

https://www.motor1.com/news/719617/oil-additives-test/

 

[GoalieBob]

For the owners of 2022 Tucson with the 2.5 engine that have had fuel injectors gone bad, at how many miles did the issues start?

I'm wondering if the continued use of Techron Fuel Treatment and using top tier gasoline would keep the injectors running issue free.

I know about the TSB Hyundai has released about replacing injectors one by one under warranty but like all TSB, it may not affect every Tucson made in 2022 or above.

I'm a few weeks late to this discussion, but dealing with a relevant issue. Two weeks ago I purchased a used 2022 Tucson with the 2.5. Yesterday it stalled on the highway and had to be towed. Just over 43,000kms on it. Today I am told they are replacing all the fuel injectors and some high pressure lines. All covered by the warranty. There were no obvious signs of trouble to me, a regular joe driver with very little knowledge of motors and vehicle electronics. The Tucson seemed to operate great for two weeks, 400km. I was really enjoying it. Then it suddenly started sputtering and stalled moments later.

 

[beeve61]

Most likely a fuel pump issue

 

[Randyzon]

Already had 1 injector replaced on a 22 Santa Fe 2.5 at 17,000 miles.

 

[2015Tuscon]

1 injector being replaced today 12/31/24 at 37K mikes. Code was 303 cyl 3 misfire...so it begins. This will be my 4th and last Hyundai. Just bought it "CPO" in Oct after my 2015 suffered engine failure at 178K. That was a slow death. Started with O2 sensor, then the Cat then the knock sensor was the fatal blow.

 

[rvermaquirk]

I'm a few weeks late to this discussion, but dealing with a relevant issue. Two weeks ago I purchased a used 2022 Tucson with the 2.5. Yesterday it stalled on the highway and had to be towed. Just over 43,000kms on it. Today I am told they are replacing all the fuel injectors and some high pressure lines. All covered by the warranty. There were no obvious signs of trouble to me, a regular joe driver with very little knowledge of motors and vehicle electronics. The Tucson seemed to operate great for two weeks, 400km. I was really enjoying it. Then it suddenly started sputtering and stalled moments later.

well, I'm now twice with stalling car, new fuel injectors needed on 2022 Tucson that I bought new. First fail March '24, now Mar '25. Stopped using Kroger gas like they said, only used Costco and other main ones. Obviously, didn't help. Not happy w/Hyundai AT ALL r/n. Guess I have to use an additive, but the service guys aren't being super clear if I really need to. What the actual heck?

 

[Freedom1]

well, I'm now twice with stalling car, new fuel injectors needed on 2022 Tucson that I bought new. First fail March '24, now Mar '25. Stopped using Kroger gas like they said, only used Costco and other main ones. Obviously, didn't help. Not happy w/Hyundai AT ALL r/n. Guess I have to use an additive, but the service guys aren't being super clear if I really need to. What the actual heck?

Hyundai states to use an additive as much as every 2k miles. Specifically Techron as that's who their contract is with. Tsb has been posted multiple times.