Experimental Investigation on Impact of EGR Configuration on Exhaust Emissions in Optimized PCCI-DI Diesel Engine

Table 2

Chemical and physical properties of the test fuels.

Property	Test fuels and compositions
	Diesel	Gasoline	Methanol	60% D and 40% G	80% D and 20% G	90% D and 10% G
Cetane number	52	13	5	37.48	44.13	49.62
Octane number	—	94	91	—	—	—
Density (g/ml)	0.89	0.73	0.79	0.78	0.81	0.83
Viscosity (mm^2/s)	2.501	0.64	2.49	1.803	2.06	2.1

D-diesel, G-gasoline