In a F-150 with a diesel. The petrol engine is just 37 mpg. Shame. 270 horsepower, 429 pound-feet of torque and 50 percent emissions reduction

Achates aramco​

 

The diesel fuel costs 15% more.. if the diesel can only get 44 mpg whilst the petrol gets 37, I'll stick with petrol.

Furthermore, the petrol can be optioned with the 138-litre tank whilst the diesel only gets the 98-litre.

 

Bad mathematics. 37 mpg plus 15 % makes 42.55 mpg

 

Then there's additional maintenance costs. Sorry, still not impressed. I'll stick with petrol.

 

 

I wouldn't say the PowerStroke 3.0 is the same as the regular 3.0.

Nowadays, with emissions in place, diesel don't get much better gas mileage anymore. Back then, it was usually at least 50% but now it's only 15%. Diesel costs 15% more in many areas anyway, so that negates the savings.

My neighbor has a petrol Mercedes-Benz ML350, the EPA said the petrol got 24 mpg while diesel got 28 mpg. With the mpg figures being too close to each other, it is not worth it especially when the petrol gets 300 hp while the diesel gets only 240 hp.

I can't justify a diesel. The additional maintenance costs. The little increase in mileage and having it negated by the higher cost for diesel. Some seem to think a diesel is less reliable. I see no benefit especially when EcoBoost does a much better job.

 

According to Achates, the engine has about 60 percent fewer parts than a comparable supercharged V6, which can result in a 10 percent cost reduction. Lower maintenace cost as well. Time to rewrite the map of engines folks.

GARY S. VASILASH Editor-in-Chief, Automotive Design & Production

 

 

When are people going to stop paying attention to diesel horsepower, it means nothing when comparing to gas motor.

 

I think this is all really exciting stuff. We've seen a lot of evolutionary changes in internal combustion engines over the last thirty years, but nothing revolutionary like this. If the opposed-piston design is as efficient as they're claiming, this would be a HUGE upending of a very established industry. The fact that Aramco has bought into the project means it's got serious potential.

 

 

Horizontally opposed engines are not new but the technology being proposed for them is certainly of interest. If I read the article correctly it is a gasoline compression ignition engine. There is a lot of potential here.

Some of the most powerful piston engines ever built were HO types such as the Napier Sabre (actually a24 cyl. H block - 2 x 12 cyl. HO blocks, 4 cam shafts and 2 cranks into a gear box). Mechanically complex.

Quote "The later Sabre VII delivered 3,500 hp (2,600 kW) with a new supercharger. The final test engines delivered 5,500 hp [6](4,100 kW) at 45 lb/in2 boost. By the end of World War II, there were several engines in the same power class. The Pratt & Whtney R-4360 four-row, 28-cylinder radial produced 3,000 hp (2,280 kW) at first and later types produced 3,800 hp (2,834 kW), but these required almost twice the displacement in order to do so, 4,360 cubic inches (71 litres)."

The old may become new again.

 

The main difference between the former WW2 engine and the new is the use of new High Tech materials like the CGI in the block that makes the engine withstanding the high loads during the compressed initiated ignition of petrol. The modern High Tech timing of the fuelinjection is brand new. All together this is making the engine lighter and more durable.
I think it will rewrite the map of how enginies may be produced. Massive torque, cleaner emissions, less fuel..............Cheaper to produce.
One secret OEM was already tooling up their transferlines two years ago to produce this engine. Hope it´s Ford.

 

When I read about this particular engine my thoughts immediately went to Subaru with it's boxer engine. Looks like they have nothing in common after all.

https://jalopnik.com/the-pros-and-co...nli-1797511015

 

It really depends on which fuel you put in your Ecoboost engine. I run 93 octane which is higher (about 3.5%) than diesel - I'm sure at least half of the people here do as well.
2.49 Regular (87 oct)
2.99 Premium (93 oct)
2.89 Diesel

But unless they beef up the chassis a little, even more than the HDPP and Heavy Duty Tow, I would rather have a 3/4 ton because the appeal just isn't there for a 1/2 ton diesel for me.