Opposed Piston Diesel Engines

Heres an interesting idea from YT comments. Don't know if he's trolling or could this actually work.

I love it! Now they need to add steam injection and make it 65% efficient. If you don't believe me look it up. I thought of it in 2007 after I bought a diesel truck in 2006 and eventually went back to school to become a mechanical engineer to develop this and other ideas. Then last year I found out that someone else is doing research on it, and proved that by injecting steam(that is heated by the exhaust around and after the catalytic converter thereby preventing it from getting too hot and reclaiming the waste energy) into the cylinder at the right time, the steam is heated further by combustion and cools the combustion below 1500 degrees celcius which prevents nitric oxide production but adds to the average combustion pressure throughout the powerstroke, and increases the mass flowrate and expansion through the turbo thereby increasing turbo efficiency as well as boost pressure. Both of these increase the power and efficiency of a diesel engine. It also has the huge advantage of not needing all of the horrible power and efficiency robbing exhaust gas recirculation systems to prevent nitric oxide because your combustion temps stay low enough to prevent their creation. Also the reduced temperatures mean less waste heat transferred through the cylinder walls, increasing efficiency again. It's a win - win situation that only works with diesels, and has the chance of making the diesel cleaner burning than any gasoline engine. The diesel engine is the engine of the future.