Use as little oil as possible to lube . A light oil such as oil used for RC cars would be a good choice. Use a toothpick to apply oil where needed or invest in a needle point oiler

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It's also a good idea to clean any lube point before applying lubrication. Bearings are especially good at get dirty,so be sure to clean them.

A little oil or light grease would be good at the servo arm pivot points

You'll have to get out the supplied hex wrench and remove the lower gear for the rest of the lube points

Swash plate lube is important

Use the shaft to gently push the lower bearing housing out the bottom

Clean before lubing any bearing

Remove lower bearing housing

I hope this helps you to keep your XRB flying for a long time Happy Hovering Rick