Got a copy? From the discussions back then I remember various claims and opinions.
From my own files:
Delvac 1 5W-40:
Product Number 441113
SAE Grade 5W40
Gravity, API 31.7
Pour Point, °C (°F) -54 (65)
Flash Point, ASTM D 92, °C (°F) 230 (446)
Viscosity cSt at 40° C 91.0
cSt at 100° C 15.2
SUS at 100° F 462
SUS at 210° F 80
Cranking Viscosity, cP at + 25°C 2,750
Pumping Viscosity, cP at 35°C 17,000
Borderline Pumping Temperature, °C -44
HT/HTS, cP at 150°C 3.9
Viscosity Index 186
Sulfated Ash, wt % 1.2
TBN, ASTM D 2896 11
Color, ASTM D 1500 5.0
Mg, 500 ppm
Ca, 2200 ppm
P, 1000 ppm
Zn, 1200 ppm
Boron, 90 ppm
TBN, 12
M1 5W-40 T&SUV:
Vis @40 C, 102
Vis @100 C, 14.8
HTHS @150 C, 4.1
VI Index, 151
Doesn't look identical to me, because none of the specs match.