petrol [Noun] + octane [Noun]

Strength Strength Dispersion
A:
3
CHISQ:
423.05
AWT:
38,605,110
TTEST:
1.72
G2:
34.04
FAWT:
1.41
MI:
7.16
LOGLOG:
11.35
JD:
0.25
MI3:
10.33
DICE:
0.26
RANGE: