Table 3.

Summary of the model validation results for all oil types and condition parameters.

Oil Type	Indicator	Water Content	Oxidation	AN
	R2	0.81	0.95	0.93
WTO	RMSE	0.40	0.29	0.05
	Slope	0.84	0.96	0.94
	Intercept	1.25	0.22	0.04
	R2	0.82	0.86	0.77
MGO	RMSE	0.19	0.15	0.05
	Slope	0.84	0.89	0.81
	Intercept	0.99	0.39	0.05
	R2	0.99
AGO	RMSE	0.57
	Slope	1.00
	Intercept	0.05