A long-time and multiple aircraft owner has told me about an excellent lubricant made by Boeing, suitable for use on light aircraft – it’s called Boeshield T-9.

Boeshield was developed – surprise, surprise – by The Boeing Company for lubrication and protection of aircraft components. It is a combination of solvents, lubricants, and waxes designed for penetration, moisture displacement, lubrication and protection. T-9 dries to a thin waxy film that clings to metal for months. It will loosen rusty and corroded parts and is safe on paints, plastics, and vinyls. To me this sounds just like the description used on other products like Lanox and WD40. However, T-9 seems to work more effectively and helps to remove old grease and lubricant film as well as add its own protective layer. Having used it myself now for almost 2 years, I can confirm it does the job well! Boeshield T-9 is available through many aviation stockists or directly on Ebay – it isn’t cheap, typically around $25+ for an aerosol can – but one can will last a very long time on a Foxbat!