I'll have to admit, I feel a bit left out of all these Hurricane discussions....but......

[Mc1502]

That does make sense yet why is there so much turbo servicing required when they age?
I suppose the turbo is just another component like any other accessory.

I'm from the big block lazy revving time when displacement was what you wanted and gearing did the rest.

Appreciate your response.

I don’t think they necessarily require a lot special attention. My prior truck (EcoBoost f150) had 190,000 miles on the clock when an idiot wasn’t paying attention and totaled it, and I never had a single issue with the turbos. I am however OCD when it comes to oil changes so maybe that was a contributing factor.

 

[silver billet]

So...how does it square with the fact that SO engine has a 10.? Compression ratio and runs on regular gas and the HO engine with a lower compression ratio 9.? Needs 91 octane.
You would think the Stallantis engineer would broadcast that regulat octane would be a big no no on the HO??? When he states on YouTube for the whole world to see that the average person wouldn't notice the difference and didn't mention any adverse damage.
Paul B

Stellantis has a history of saying stupid things; like apparently the hemi is "fine" on 87 but you can read reports all over of guys getting ping and logging it from the computer, they say the transmission fluid is "lifetime" and have no spot in the maintenance schedule to service it and yet ZF who actually makes the transmission, suggests something like 70k intervals. The whole world can see that ZF says to change the fluid, that doesn't stop Ram from saying "don't bother".

When an engine has an octane range like that, 87 to 89 or 91, then the way its been tuned is that it needs the high octane to not ping or knock. When you run 87 in it, the engine starts knocking or pinging and it relies on special microphones called knock sensors, which actually hear the engine making noises, and then the computer dials down the timing or fuel mixture etc, but it tries and wants the higher octane. There are no fuel sensors (other than the crazy hemi/demon 170) in the tank which detects the octane you're running, it actually hears the engine complaining (literally) before it reduces timing, and then tries to adjust it upwards etc etc.

You're welcome to treat your engine as you wish, and your engine may end up lasting a long time too despite the 87. Mine gets nothing but 91 regardless of the manual, and my transmission gets serviced too.

 

[Rangerman]

Regarding turbos: I’ve owned 3 turbo cars and had no turbo issues with them (2/3 were known to have reliability issues related to turbos failing…)

my secret was pretty simple…3000 mile oil changes with full synthetic. The Subaru and Mazda ran Mobil1 and the VW ran German Castrol if I remember correctly.

If I end up with a Hurricane I’ll do the same thing, and just do my own oil changes about halfway through the manufacture requirement miles and keep bringing it to the dealer at the required times while still in warranty so Stellantis has a record of it during my warranty period.

 

[PetePA]

Regarding turbos: I’ve owned 3 turbo cars and had no turbo issues with them (2/3 were known to have reliability issues related to turbos failing…)

my secret was pretty simple…3000 mile oil changes with full synthetic. The Subaru and Mazda ran Mobil1 and the VW ran German Castrol if I remember correctly.

If I end up with a Hurricane I’ll do the same thing, and just do my own oil changes about halfway through the manufacture requirement miles and keep bringing it to the dealer at the required times while still in warranty so Stellantis has a record of it during my warranty period.

Only turbo I owned I did have an issue with, but it was an 88 royal blue Chrysler Conquest and I was a kid and didn't let it cool before shutting it down. Sounds like they resolved this issue years ago though.

And FYIY, the Conquest was a badass car as a kid.

 

[HSKR R/T]

Only turbo I owned I did have an issue with, but it was an 88 royal blue Chrysler Conquest and I was a kid and didn't let it cool before shutting it down. Sounds like they resolved this issue years ago though.

And FYIY, the Conquest was a badass car as a kid.

Conquest was also a Mitsubishi built car

 

[Rangerman]

Only turbo I owned I did have an issue with, but it was an 88 royal blue Chrysler Conquest and I was a kid and didn't let it cool before shutting it down. Sounds like they resolved this issue years ago though.

And FYIY, the Conquest was a badass car as a kid.

I remember the Conquest! Friend has a Mitsubishi Starion and then another friend was into 4G63 and had done some swaps etc.

I think a big issue was Dino oil, and the solution was going from Dino to Synthetic.

The Subaru was a ‘05 legacy Gt and had banjo bolts with a filter in the bolt…and longish OCI and didn’t specify full synth…great idea those filters would sludge up, oil starve the turbo, boom.

The Mazda was a ‘07 Mazda cx7 which may have been one of the worst designed cars ever. That one the oil issue was again due to Manf. giving poor guidance. Engine was a sludge machine, and the timing chain would also stretch, engine out of time, bye bye engine.

so short OCI and synth saved me from both those issues.