I like his videos but keep in mind that he sees the worst of the worst. He doesn’t see the ones that end up reliable because they don’t spend much time in the shop. Not to mention the blown head gaskets are more memorable than the L15 with 200k miles.

 

The HG issues tend to be in the heavier vehicles with higher load on engines, and likely driving habit dependent too.

All the cool kids F-ing around with modding their 1.5 for turbo noises and extra power gonna find out, keep it stock and don’t drive it like NASCAR and you should be ok.

 

I am a high mileage 1.5 guy.

2022 Si bought November 22 of 2022. Currently has 228,XXX.

The only issue I have is the steering issue, there is a recall for that.

Other than that, change the wet stuffs, filters and occasionally the plugs and keep on keeping on.

 

I mentioned your mileage on BCAutoSolution's YT channel and he is thoroughly impressed.

 

I would trust anything with a Honda badge to be at least as reliable as competing brands.

 

YouTube channels have to find some kind of shock value to keep you coming back (and don’t forget to like, share, comment, save, bookmark, dance, twirl and all kinds of other tricks).

 

This is what we call availability bias. All this guy sees are a handful of detonated 1.5T engines, yet he ignores the hundreds of thousands of 10th and 11th gen Civics with these engines that have been sold in the past 8 years and that they can reliably get up to 250k miles on them with routine maintenance. It's the same thing with Scott Kilmer.

 

I'm at 62,000 miles on my 2023 Si. I haven't had a single issue. I do some spirited driving here and there, but overall just commute. I use 93 or 94 Gas always. I have an Intake, and a cat back exhaust for the last 40,000 miles or so and NO TUNE. Just yesterday taking the entry ramp onto my highway I stepped on it for a couple gears to redline, hit 120MPH, cruised home. Sometimes I feel like the car runs better after a couple pulls. I change the oil every 5-6k miles. I just changed my transmission oil like 8k miles ago, so its pretty fresh for another 50k. I've done one fuel / emissions systems cleaning. Still on my first set of brakes, and tires. Only cons have been my bad luck with rocks destroying my windshields, the speakers seem a bit more rattly than when new, but I can fix that. This car has saved me from multiple accidents due to the responsiveness in cold and hot conditions. I wouldn't go to crazy on tunes unless you want to upgrade internals and what not. I'm saving up for a fully built setup to really go all out with it. This is by far the most reliable car I've owned.

 

I've had a 2016 Civic EX-L 1.5T and currently a 2023 Sport Touring 1.5T, both tuned and haven't had any issues engine wise. I feel like as long as you don't modify it to the point of grenading the engine and transmission, don't abuse it, and you do the required maintenance it should last a long while. Just keep in mind, it doesn't matter if its a 1.5T or a 2.0T, or the NA 2.0, catastrophic failures can happen at any time regardless of how well you take care of your car and mechanics generally will see the issues that occur more often than not compared to us.

 

I am a high mileage 1.5 guy.

2022 Si bought November 22 of 2022. Currently has 228,XXX.

The only issue I have is the steering issue, there is a recall for that.

Other than that, change the wet stuffs, filters and occasionally the plugs and keep on keeping on.

Any mods? What type of oil and fuel do you use? If I keep the car I will probably tune it.

 

The subject regarding fuel has been beaten to death on multiple forums on whether you should or should not use 87, it depends on your car.

This is from the manual... without Honda saying it outright, 87 can be used in a pinch when premium isn't available. Can you use 87 in an Si, yes, it would be the bare minimum. Should you use it for the long run, probably not.

 

Si needs premium while the others do not due to different tuning. You gain nothing filling your EX/Sport Touring with premium, the N/A sport models with 2.0L would be even a bigger waste

 

If the Si needed higher than 87 then it would not say 87 required. The car literally has a sticker near the fuel filler that says 87.

 

Did they change something between 2022 and 2025?

My 2022 si, with 229,538 miles, says right on the gas door, 87 minimum.

 

With 230K, just keep doing what you're doing. I bet that gas door is used on all Civics with the same sticker.

 

I'm gonna bet it's negligible, people forget that engines adapt to different octanes. If you have a logging software or ktuner v2 you can see in real-time how the car goes from running lean/rich to as close to in between as it can get. My engine was choking for at least 3 months and knock control did its job. It would do the same if your octane was different, though it's not ideal given how lower octane combusts with less pressure.

 

Turbo engines rated for 87 octane will live forever on regular. Today’s control modules will happily suck out timing and boost to protect those pistons. With the allowance I get from my wife it’s exactly what my VW Alltrack got when its racechip was turned off. That said, Turbo engines definitely make more power on premium fuel as then their allowed full boost and timing.

 

My EX doesn’t have a sticker, we have always put 87 octane and there are no problems so far but I don’t want to find out the hard way.

 

If you drive conservatively I would say 87 is fine for your ex, but for the si I would put premium gas in as the manual recommends cuz it pushes more boost

 

I forgot what they use in the 11th. gen. Civics but the sedan and Si had stronger rods than the Hatchback in the 10th.gen.
Definitely they kept the strong ones for the newer Si but can't remember what is in the other trims.
Probably the lighter rods were the reason fuel economy was better for my 2018 hatch then my 2023 Si, even though both were tuned.

https://www.civicx.com/forum/threads/comparison-of-base-1-5t-and-si-1-5t-connecting-rods.21416/

 

The extent manufacturers need to go to add 20hp and warranty them to hold together makes me question our choices to add a 50hp Tunes to stock turbocharged engines.