Join Date: Feb 2008
Location: Hebden Bridge
My Motorhome: Knaus Sun Ti 600LF
Thanked 74 Times in 67 Posts
I have a suspicion that the stiffness of Renault Master wing-mirrors may be linked to the weather. In summer it has been somewhat easier to push ours back than it is in winter when it's cold and very wet.
I have tried various dispersants and lubricants (WD40, easing oil and plastic hinge lubricant) with varying success. I couldn't really say which one actually made them easier to move. This 'problem' is nothing in comparison with the wing-mirrors on our old Auto-Sleeper on a VW chassis, which could fold back in a strong wind!