INTERNATIONAL SHIPPING
Approvals and Conformities
Product Attributes
Country of Origin
Some of the instruments on your aircraft require lubrication to work how they're supposed to. For those instruments, SkyGeek carries Castrol® Brayco™ 885 Instrument Lubricating Oil in a convenient quart-size can. Castrol® Brayco™ 885 Instrument Lubricating Oil is a synthetic oil that's packed full of specialized additives that help guard against corrosion, inhibit oxidation and reduce foaming. The low-volatility formula has good viscosity and works in a wide range of temperatures. The service temperature range for Castrol® Brayco™ 885 Instrument Lubricating Oil is -65ºF to 250ºF (-54ºC to 121ºC).
Castrol® Brayco™ 885 Instrument Lubricating Oil is designed for use in a wide variety of aircraft instruments including electronics equipment and applications where a low evaporation rate is desired. Because it can adversely affect certain paints and elastomers, Castrol® Brayco™ 885 Instrument Lubricating Oil should not be used on exterior surfaces and should always be tested for compatibility before use.
| TEST METHOD | DESCRIPTION | MIL-PRF-6085D REQUIREMENTS | RESULT |
| D 287 | API Gravity @ 16°C | N/A | 21.6 |
| Table 3 | Specific Gravity @ 16/16°C (60/60°F) | N/A | 0.924 |
| Table 8 | Pounds per Gallon @ 16°C (60°F) | N/A | 7.7 |
| D 1500 | Color, ASTM | 5 Maximum | <2.0 |
| D 445 | Viscosity, cSt @ 54°C (130°F) @ -54°C (-65°F) | 8 Minimum 12,000 Maximum | 8.96 10,900 |
| D 97 | Pour Point, °C (°F) | -57 (-70) Maximum | <-57 (<-70) |
| D 92 | Flash Point, COC, °C (°F) | 185 (365) Minimum | 226 (439) |
| D 974 | Acid Number, mg KOH/gm | Report | 0.11 |
| D 91 | Precipitation No., ml | 0 | 0 |
| D 972 | Evaporation Loss, % wt 22 hrs @ 120°C (248°F) | 1.80 Maximum | 0.38 |
| Spec 4.4.5 | Low Temperature Stability 72 hrs @ -54°C (-65°F) | No gelling or separation | Pass |
| Spec 3.7 | Workmanship | Pass | Pass |
| D 4636 | Corrosion-Oxidation Stability 168 hrs @ 121°C (250°F) Corrosion, Pitting, Etching Wt. change, mg/cm2: -Copper -Steel -Aluminum -Magnesium -Cadmium Viscosity Change, 54°C (130°F), % Neutralization No. Change, mg KOH/gm No evidence or separation or gumming | None 0.2 Maximum 0.2 Maximum 0.2 Maximum 0.2 Maximum 0.2 Maximum -5 to +5 0.5 Maximum Pass | None 0.006 0.005 0.011 0.006 -0.0048 0.337 0.05 Pass |
