This has been discussed before on Ars, such as at https://arstechnica.com/civis/threa...ost-efficient-heat-pump-in-the-world.1501605/, and https://arstechnica.com ...
The key ingredient to maximizing the peak performance of a diesel engine is increasing the amount of diesel being burned. On old mechanical-injection engines, the only way to do this was to modify the ...
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