Page 649 - The Central Motor Vehicles Rules, 1989

ANNEXURE IV-U THE CENTRAL MOTOR VEHICLES RULES, 1989 621

is 4R (R = reproducibility). Notwithstanding this measure, which is necessary for
technical reasons, the manufacturer of fuels shall nevertheless aim at a zero value
where the stipulated maximum value is 2R and at the mean value in the case of
quotations of maximum and minimum limits. Should it be necessary to clarify
whether a fuel meets the requirements of the specifications, the terms of ISO 4259
shall be applied.
2 The range for cetane number is not in accordance with the requirements of a
minimum range of 4R. However, in the case of a dispute between fuel supplier and
fuel user, the terms of ISO 4259 may be used to resolve such disputes provided
replicate measurements, of sufficient number to archive the necessary precision,
are made in preference to single determinations.
3 Even though oxidation stability is controlled, it is likely that shelf life will be
limited. Advice shall be sought from the supplier as to storage conditions and life.
4 FAME content to meet the specification of EN 14214.
ANNEXURE IV-U
[Refer rule 115(19)] ANNEXURE IV-U
SPECIFICATION OF COMMERCIAL GASOLINE FUEL

Characteristics Unit Requirements
Regular Premium
Color, visual Orange Red
Density @ 15˚C Kg/m3 720-775 720-775
Distillation :

(a) Recovery up to 70˚C (E 70) % volume 10-55 10-55
(summer) (summer)
10-58 10-58
(other (other
month) month)
(b) Recovery up to 100˚C (E 100) % volume 40-70 40-70

(c) Recovery up to 150˚C (E 150) % volume 75 min 75 min
(d) Final Boiling Point (FBP), max ˚C 210 210
(e) Residue, max % volume 2 2
Research Octane Number (RON) min 91 95

Motor Octane Number (MON), min 81 85
Gum content (solvent washed), max mg/100 ml 4 4
Oxidation Stability, min minutes 360 360
Sulphur, total, max mg/kg 10 10

Lead content (as Pb), max g/l 0.005 0.005
Reid Vapour Pressure (RVP) @ 38˚C, max kPa 67 67