[T_690]

Tell me... If a vast majority of your mileage is on open roads or maybe even more on motorways which type of engine would you choose and why.

@David S

 

[T_690]

There is no better than diesel at very high speeds at constant speeds. Or even at grade. It just shines.

Imagine car doing 150 km/h for many kilometres. Hybrids just aren't efficient.

 

[T_690]

@Dave Z

As speed gets higher gap in real life fuel consumption goes more and more on the side of diesel against petrol.

And as you know Germans have a lot of motorway i.e. autobahn sections where there is no speed limits.
No wonder that they want diesel to live and all of their cad makers are offering 2.0 diesels.

Even in my country it's tolaretad by police if you drive up to almost 160 km/h which is almost 100 mph. That's a lot.

Anyway for STLA it does make sense to offer 2.2 diesel not just for LCVs but also for passenger cars in C segment and higher/larger.

 

[T_690]

I hope the issues of the 1,5 are fixed (i have one!).
I read on an other website that Stellantis could be working on a brand new diesel engine, they don't say too much but i guess it could be a 2l?

Actually... If you look at spare parts catalogue could see a 2.2 diesel for Fiat Scudo... So Fiat diesel on PSA sourced platform.

 

[T_690]

Puting a Fiat engine in a PSA sourced platform is not an issue, it just cost money since they need to redo all the crash tests. From what i read it seems that the 2L HDI won't be upgraded to match Euro 7, that's why they're switching to the 2,2L wich would be a great option for the Scudo and i guess the cars on STLA Large.

I seem that some "Italians" are mad about the fact they didn't choose the Firefly for the others platform it's mostly for that cost reason but also the CO2 emissions wich is a big deal in Europe and on this point the 1.2L is better.

Arguably Multijet are more reliable engines.

I would say the same with GSE against EB2 and P2.5 MHEV GSE is 4 cylinder engine.

Just quick comparison for E6E versions.
Tonale Vs the all new new 3008 which have roughly the same weight.
1.5 GSE T4 130 HP has lower CO2 emissions than 1.2 EB3 136 HP.
Actually numbers are pretty much similar.

The real reason of keeping EB2 was their thinking that internal combustion engine ban in Europe would come sooner and that swith to BEV / BEV adoption would be much quicker.

 

[T_690]

This is theoretical advantages. Actual federalized cars with over 45 mpg highway in the last decade:

Ioniq Blue 60 hwy
Prius 56
Elantra Blue 56
Prius AWD 54
Niro FE 54
Sonata Blue 54
Camry 53
Corolla 52
Cruze Diesel Manual 52
Insight 49
Accord 48
Jetta 48
Cruze Diesel 48
Civic 47
Prius C 46
Malibu 46
Optima 46
Civic hatch 45
Lexus ES 45
Cruze Diesel hatch 45

There is only one Diesel on the list, the Chevy Cruze, 16 hybrid cars, no crossover SUVs, one tall wagon, gasoline hybrids top the list.

Theory doesn't translate to practice once you have to federalize the engines.

Fuel Economy

Fuel economy of the . 1984 to present Buyer's Guide to Fuel Efficient Cars and Trucks. Estimates of gas mileage, greenhouse gas emissions, safety ratings, and air pollution ratings for new and used cars and trucks.

www.fueleconomy.gov

Do you know fuel consumption of any of them when running at 90 or 100 mph constantly.

 

[T_690]

C-segment cars used to have 2L diesels in their offering, and for D-segment you could find V6's, the previous 508 used to have the same 3L V6 you'll find in Jaguar/Land Rover!

New Q5 and A5 from Audi have 2.0 TFSI and 2.0 TDI at various power levels with S models having 3.0 V6 with round 370 HP.

This is something which ex FCA has covered with 2.2 Multijet and 2.0 GME T4 engine.
But unfortunately there is no Miller version of GME.

But 2.2 Multijet would be also nice for C and D segement STLA Medium based SUVs.

 

[T_690]

Both diesels and petrol engines have particulate filters, at lest in the EU.

For GDI engine extremely dangerous are PM 2.5.

https://pmc.ncbi.nlm.nih.gov/articles/PMC5920433/#:~:text=in%20these%20diseases.-,PM2.,of%20cytokines%20and%20inflammatory%20cells

.

https://pmc.ncbi.nlm.nih.gov/articles/PMC5522148/#:~:text=Lung%20cancer%20incidence%20associated%20with,CI%3A%200.61%2C%201.75)%5D

.

https://www.sciencedirect.com/science/article/abs/pii/S0045653522036748

 

[T_690]

I would add cancer danger with GDI engines due to particulates, especially very fine PM2.5 this in the EU GPF is mandatory which is something AFAIK which is not the case in US.