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Discussion Starter #201
Spring has sprung 3 months early (note the mud on the exhaust pipe pictured above) and my driveway is very muddy.
Maybe some mud flaps are in my future?

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Discussion Starter #202
The OEM axle-back section weighs in at 13.0 kg, so about 28 lbs.
At least that's what these guys measured:
I found my not very accurate scale finally and it says that the OEM system is 28.8 pounds.

Fabio says that the system he sold me weighs 5.5kg = 12.1 pounds, so >16 pounds of weight saved, plus a valved exhaust added, plus free-er flowing exhaust to allow me to take some advantage of an EC Phase 2 tune. The exhaust is still 2.5 inch and still has the OEM front crimped section, so it is not as wide open as the 3 inch straight pipe that EC used to get 392HP. Even so, I appear to be getting about 1MPG better fuel economy on the highway with the valve open, so there does seem to be some noticeable flow improvement.

Fabio's system in 304 stainless weighs 10.5kg.

My OEM system (430 stainless?) has some serious rust on it. Not exactly what I was expecting for a 2 year old muffler.

430 stainless is stronger than 304 stainless, but not as corrosion resistant. Stainless exhausts might behave better if treated a passivation chemical before installation.
Titanium is stronger than 430 stainless and almost corrosion proof until it gets above a magic temperature, then it corrodes so fast it will catch fire. I sure hope my exhaust never gets that hot.

Inconel is reportedly better still, but good luck with that.
 
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I've avoided the dirt roads (plenty of those around me) but have a good layer of Michigan, New York, and Ontario winter deposits. The back is even worse.
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Discussion Starter #204
FWIW: Nokian R3 tires are SNOW tires, not MUD tires. You need big chunky blocks to get traction in mud. It was a bit of a wild ride up my driveway and TC/ESC cut in hard a couple of times (very annoying when it cuts power). I may try powering through in D next time...
 

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Discussion Starter #205
Got my first Blackstone oil report back, from the 48k mile oil change:

Metals lower than average; some metals are much lower than average. No measurable fuel, water or coolant contamination. Viscosity etc in range. All of this in spite of my going 2000 miles longer than average before the oil change.

The only thing that looked at all abnormal was Boron at a little above twice average. How does Boron get in the oil?
 
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Discussion Starter #207
So if I read it correctly, high Boron levels indicate that the oil is not "spent" and is actually a good thing.
Hopefully it does not indicate Boraxo hand soap contamination of the oil.
 

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So if I read it correctly, high Boron levels indicate that the oil is not "spent" and is actually a good thing.
Hopefully it does not indicate Boraxo hand soap contamination of the oil.
What oil?
 

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Discussion Starter #209
What oil?
Pennzoil Platinum Euro LX 0W-30. I'll try Motul at my next change; Motul also claims to meet the Fiat spec.

Curiously my oil fill indicator went from 1/3 (for 100 miles) to 1/2 (for 500 miles) to on the full mark. This electronic dipstick is wonky at best.
 

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Pennzoil Platinum Euro LX 0W-30. I'll try Motul at my next change; Motul also claims to meet the Fiat spec.

Curiously my oil fill indicator went from 1/3 (for 100 miles) to 1/2 (for 500 miles) to on the full mark. This electronic dipstick is wonky at best.
 

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Discussion Starter #211
Interesting. They did not test the Euro spec Pennzoil, nor the 0W-30 grade. However, their low rating for Motul (which version?) is perhaps alarming.
 

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Interesting. They did not test the Euro spec Pennzoil, nor the 0W-30 grade. However, their low rating for Motul (which version?) is perhaps alarming.
If you search his channel I believe there are a few other comparisons that may have the types tested.
 

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Discussion Starter #213
OK, here is a new one for anyone doing an oil change on a 2.0T Giulia (QV and diesel may have similar issues, I do not know). I do not recollect seeing this in the service manual or the forums.

The front underpan is fastened in place with 19 screws. Those screws are NOT identical to each other. In particular some of the screws have a 1.5mm shoulder while others have a 3mm shoulder. The 1.5mm shoulder screws are apparently for locations that thread into something solid, like a cross member, while the 3mm shoulder screws are for locations that use clip on nuts.

If you use the 3mm shoulder screws in the 1.5mm shoulder locations the underpan can rattle.
If you use the 1.5mm shoulder screws in the 3mm shoulder locations you will not have enough 1.5mm shoulder screws to reassemble, plus the 1.5mm screws may allow the parts to shift.
 
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Discussion Starter #214
The latest news: my car is experiencing intermittent CAN bus communication faults. Almost every module is reporting multiple intermittent faults, all with CAN bus communications. I also see low battery voltage. For some reason auto start-stop is working even with the battery reporting 31% charge status. I have ordered a new AGM battery from Pep Boys. Said battery is currently on sale and is the only non-OEM battery that I could find that is a proper fit. It is AGM, avoiding the need for the vent that most batteries lack.

I had an episode 2 weeks ago with the transmission "jumping out of gear", then re-engaging once I let off the accelerator. It did this twice, while I was cruising on the freeway. I do not recollect anyone else reporting such behavior. For now I will assume that this is the same as the CAN bus fault.

I have confirmed that my ECM has not been updated per W05.
I have confirmed that my DTCM probably has the wrong SW version to allow Race mode to work.
 

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I had an episode 2 weeks ago with the transmission "jumping out of gear", then re-engaging once I let off the accelerator. It did this twice, while I was cruising on the freeway. I do not recollect anyone else reporting such behavior. For now I will assume that this is the same as the CAN bus fault.
Were you in Advanced efficiency mode? It does exactly that in A mode.
 

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Discussion Starter #217
Were you in Advanced efficiency mode? It does exactly that in A mode.
No, the engine does not rev to 3000RPM while going 70MPH (115KPH) and decelerating in A mode. The car was not sailing, or at least not sailing properly.
 

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Discussion Starter #219 (Edited)
I misunderstood what happened in this case... quite strange behavior...
That was my fault for not explaining what I experienced properly.

My hope is that it went into sailing mode for a moment as I let off the accelerator for a slight downgrade, then when I tapped the accelerator CAN bus errors resulted in the transmission not re-engaging. I did not think at the time to see if the problem happened in N mode. This behavior happened twice and has not been observed since then.

I did pop open my center console in order to install a DNAR switch and a harness for a controller for my Fiammenghi valve controller. It is alternatively possible that this disturbance created some fault on a cable that carries CAN bus signals. Note that the Fiammenghi adapter does not touch any CAN bus signals, as the DNAR switch on an MY2018 Giulia lacks any communications.

FWIW: The center console is massively complex and overweight. I wonder how much of the 100kg weight reduction in the new GTA comes from getting stuff like this under control. I also wonder to what extent drilling out plastic bits could lighten it. It appears that a lot of plastic is solid for the purpose of making molding easy and cost effective, rather than for strength or rigidity. Also, in many places there are many layers of plastic apparently to make assembly easier
 
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My hope is that it went into sailing mode for a moment as I let off the accelerator for a slight downgrade, then when I tapped the accelerator CAN bus errors resulted in the transmission not re-engaging. I did not think at the time to see if the problem happened in N mode. This behavior happened twice and has not been observed since then.

I did pop open my center console in order to install a DNAR switch and a harness for a controller for my Fiammenghi valve controller. It is alternatively possible that this disturbance created some fault on a cable that carries CAN bus signals. Note that the Fiammenghi adapter does not touch any CAN bus signals, as the DNAR switch on an MY2018 Giulia lacks any communications.

FWIW: The center console is massively complex and overweight. I wonder how much of the 100kg weight reduction in the new GTA comes from getting stuff like this under control. I also wonder to what extent drilling out plastic bits could lighten it. It appears that a lot of plastic is solid for the purpose of making molding easy and cost effective, rather than for strength or rigidity. Also, in many places there are many layers of plastic apparently to make assembly easier
Possibly it's some emergency charging logic. Get the rpms up to increase alternator output? A single missed can message will store a code, missing several will trigger all sorts of errors and warnings.
 
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