Choosing The Right Aircraft Oil Is As Easy As 1,2,3 - Elders Rural Services

Choosing The Right Aircraft Oil Is As Easy As 1,2,3

Uniquely Australian, helicopter mustering is necessary to cover the wide spanning Australian outback when gathering livestock.

Mustering is often performed in one of a kind conditions including dust storms and extreme heat with the presence of constant distractions for the pilot. Working in these conditions in remote environments, over extended periods of time, emphases the importance of using the right products that you can rely on.

Choosing the right oil for your aircraft can be a confusing and overwhelming task. Here are the 3 things to consider when deciding what oil to use:

1.      Function of the oil

Break-in Oil vs Working Oil

Did you know that using the wrong type of oil can result in hefty repair bills?  For the majority of aircraft piston engines, selecting the right type and grade of oil is important to maximise engine performance and engine life.

Use a break-in oil, like AeroShell Oil 100, which contains minimal additives, to ensure that your engine’s piston rings are well-seated during run-in. For regular operations, use an ashless dispersant working oil from the AeroShell W or W Plus series oils to keep your engine well protected from wear and corrosion.

Break-in Oil

  • Used for break-in process of new or newly overhauled engines
  • Do not contain additives except for a small amount of pour-point depressant and an antioxidant which helps achieve cylinder wear required in break-in process
  • Examples of break-in Oil: AeroShell Oil 80/100/120 (choose viscosity based on ambient temperature)

Working Oil

  • Ashless dispersant oil used for the normal operation of all four-stroke aviation piston engines
  • W oils contains standard additives package
  • W Plus oils and W15W-50 are premium oils containing the standard additive, plus an additional anti-wear and corrosion inhibiting additive package

2.      Viscosity Grade vs Temperature

This chart provides approximate guidance for selecting the most suitable grade of oil based on the average ambient outside air temperature at engine start-up. AeroShell W15W-50 is a multi-grade oil with viscosity stability in both cold and warm climates, making it a great choice for all seasons.

Did you know engine wear typically happens during cold start up? Using the correct viscosity grade for the right ambient temperature ensures your engine receives the protection it needs from the moment you start your engine. Using a multi-grade oil like AeroShell W15W-50 ensures your engine is well protected, no matter the season you are flying in.

3.      Additional Protection

Lycoming approved an oil additive LW-16702 to be used on their piston engines. This additive contains an anti-scuffing agent which can dramatically reduce engine wear. FAA AD 80-04-03 R2 also requires this same additive, or its equivalent, to be added to Lycoming O-320-H, O-360-E, LO-360-E, TO-360-E, LTO-360-E series engines to prevent excessive wear and oil system contamination associated with hydraulic lifters spalling on.

Did you know modern piston engine oils like AeroShell W100 Plus and AeroShell W15W-50 have the identical Textron Lycoming additive LW-16702 premixed into their formulations for your convenience? This eliminates the need for you to separately purchase and manually add LW-16702 or its equivalent into your engines, saving you time, effort and potentially money.

Premium Working Oils

  • AeroShell W Plus oils and AeroShell W15W-50 are premium oils containing the same ashless dispersant additives found in its W oils, together with an additional anti-wear and corrosion inhibiting additive package that is identical to the Textron Lycoming additive, LW-16702
  • Premixed additives for your convenience.

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