Will the Diesel be Dead?

Seems like neat technology. Also looks like a lot of moving parts.

The statement "Nissan says the engine makes sense as a four and not a V6 or V8" pretty much limits it to small cars. Don't think we will be towing a large trailer or driving a MH with one anytime soon.

Good days are coming for engines.

There is absolutely nothing in that article that applies to diese engines used im full size trucks for towing purposes. This is strictly an eco car play.

Next...

yep...lets see how long that last...my Diesel has variable compression already...its called a turbo charger :)

What does this have to do with diesel? In no way does it replace them nor does it perform like diesel.
They tried the variable compression idea on Infinity first. Scotty Kilmer says it's a terrible enjoy and a "Don't buy". Looking at how it's engineered, I agree.

Recently bought a new-to-me 2017 model car. BIG thing was about fuel economy and MPG. Rated for 24 MPG or greater, with all kinds of gadgets and stuff to provide that from a 4 cyl engine. My 2000 model Chevy minivan V6 consistently got 30+ mpg on the highway, and average overall about 26 MPG from the time it was purchased up till it was traded with over 135K miles. So what is the new tech good for?? And the van didn't quit every time we stopped at a stoplight.

ScottG wrote:
What does this have to do with diesel? In no way does it replace them nor does it perform like diesel.
They tried the variable compression idea on Infinity first. Scotty Kilmer says it's a terrible enjoy and a "Don't buy". Looking at how it's engineered, I agree.

Rube Goldberg comes to mind! This thing is a mess! It reminds me of the 10 head bolts/ cylinder head thing...………...but 10x's worse! And almost as bad as mounting a nuclear reactor in a car. :R

It may bring efficiencies in smaller gassers close to what small automotive diesels produce at the cost of complexity. It is interesting they are also using Atkinson cycle valve timing to increase efficiency by derating the engine. This would not be appropriate technology to use in an application where the engine required most of its rated output, but I could see some consumer vehicles benefiting from on-demand horsepower increases while typically needing less during normal operation.

I saw an article earlier about electronic valves in a standard gasoline engine. Talk about a quasi 2 stroke mode. Probably get more wide spread use.
I have to say Fords Eco boost are variable compression as has been pointed out. Who would have thought even ten years ago about a 3.5 liter V6 being an excellent engine for towing...