From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Specification comparison table for Aero Mobiloil Red Band and Green Band.
| Identifier | ExFiles\Box 145\1\ scan0137 | |
| Date | 8th January 1935 guessed | |
| AERO MOBILOIL RED BAND. AERO MOBILOIL GREEN BAND. Specific Gravity: .882 | .888 Pour Test: Fls.{F. Llewellyn Smith - Frames}@ 0°F | 0°F Open Flash Point: 505°F | 530°F Closed Flash Point: 475°F | 510°F Fire Point: 570°F | 595°F Redwood Viscosity @ 70°F: 3245" | 5240" @ 100°F: 1051" | 1545" @ 140°F: 327" | 460" @ 200°F: 100" | 124" Colour: 40 | 80 Compound: Nil | Nil SO₃: 0.002% | 0.002% Conradson: 0.22% | 0.28% R.Coke before oxidation: 0.23% | 0.30% R.Coke after oxidation: 0.72% | 0.71% Inc.Viscosity: 1.34 times | 1.13 times Poises @ 100°F: 2.36 | 3.50 Poises @ 200°F: 0.202 | 0.258 This meets the Air Ministry DTD.109 Specification. | ||