Gasoline/petrol and diesel engines appear to be converging in their technologies. Gas engines are adopting diesel techniques like direct injection, lean operation, higher MPGs (40+) while diesels are moving towards low compression, richer burns, and lowering MPGs. (Example: Jetta TDI dropped 45 downto 42.)
Example from Mazda engines:
- SkyActive G-motor is 14:1 (highest compression for a gas engine)
- SkyActive CDI engine is 14:1 (lowest compression for a diesel)
They are almost identical in design, except one is spark ignition & the other is not. Cool. :-D
Example from Mazda engines:
- SkyActive G-motor is 14:1 (highest compression for a gas engine)
- SkyActive CDI engine is 14:1 (lowest compression for a diesel)
They are almost identical in design, except one is spark ignition & the other is not. Cool. :-D