Toyota’s new VVT-i D4 (D4 is short for “direct injection 4-stroke”) engine has been improved by a small, but very effective new idea, that makes it 8% more efficient than the award-winning VVT-i engine. Petrol is now directly injected into each cylinder through a slit-like nozzle giving VVT-i D4 the following benefits:
- Increased fuel atomisation for better combustion
- Petrol no longer sticks to the injection port when starting cold
VVT-i D4 engines deliver:
- Fewer harmful emissions
- Lower fuel consumption
- Higher power output
