Tonight I made up a pot of suspension knife edge grease. The knife edges are the triangular pivots that form the connecting joint between the suspension arms and the push rods that enter the horizontal interconnected spring arrangement.
It’s designed as a dry joint but as it carries a lot of load it’s recommended to grease it to prevent rust. The trick is to mix grease with engine oil so it penetrates better. Turns out you need quite a bit more oil than I anticipated (about 1:1 oil and grease) so I’ve now got a supply that should last some time.
Applying the grease mixture is pretty straight forward – get under the car and use a paint brush to liberally apply the mixture to the the knife edges.