Why haven’t we seen many diesel PHEVs?

[Rmay635703]

old gm 6.2 diesel, 20 mpg, new duramax 11 mpg

Perhaps performance needs ro be toned down a bit. Car companies suit the wants of its customers not the need. If they came out with a square body again with no frill no nothing, they would sell like hotcakes. But unfortunately, most do not WANT that. They want the 10sec quarter mile, 30k towing capacity, heated and cooled seats.............

My 6.2 c-code was around 28mpg but 2wd with a stick.

 

[Audiman]

NRCAN doesn't agree with this, lol.
They state:
- Gasoline releases 2.3kg CO2/litre
- Diesel releases 2.7kg CO2/litre

https://natural-resources.canada.ca...ient-technologies/autosmart_factsheet_9_e.pdf

This article concurs, noting that while emissions per litre are higher for diesel, overall CO2 emissions were less simply because they used less fuel:
https://theconversation.com/fact-check-are-diesel-cars-really-more-polluting-than-petrol-cars-76241

The EPA also correlates here, noting
- Diesel: 74.14kg CO2 per million BTU
- Gasoline: 70.66kg CO2 per million BTU
https://www.eia.gov/environment/emissions/co2_vol_mass.php

This is correct. Diesel wash pushed in the UK by the Government as your average diesel car back in the early 2000’s could do 55 plus MPG compared to 30 MPG from petrol. The better low down torque from the diesels making everyday driving easier with lower cruising RPMs, lower fuel costs and tax made consumers favour the diesels too.

The lower fuel usage per mile is what made the diesels CO2 output lower rather than the output per litre. If you have a petrol and a diesel vehicle that uses the same amount of fuel then the diesel output would be higher.

Now that you have turbocharged 1.5 litre petrol engine making decent power and torque numbers whilst being able to achieve 55MPG on a run it’s easy to see why people have cane back round to the typically less problematic petrols.