Wurth Ultra 2040 Multi-Purpose Lubricant, Penetrant and Water Displacer - 2 x 500ml Cans

Have used this for quite a few years and it is much better as has better penetration and lubrication than WD40.Puts a water resistant film as a sealant when sprayed onto padlocks, hinges and garden tools plus many more similar applications.Highly recommend and worth paying that little extra.

Excellent. It worked. I used it on our BMW that had a squeaky suspension. The noise went immediately after application.