Summer lovin' had me a blast

[BigC]

Hi Folks...
Well I do like a tidy clean vehicle, A full on obsessive amateur detailer is how I would describe myself, spending hours from Snowfoam to wax ...Pics will follow shortly of process and bead patterns etc I'm sure 
But for now I noted that water can ingress around the rear door hinges of my 2015 Berlingo Enterprise 1.6 HDI...or at least get in there by opening and closing the doors quite often in inclement weather...I see slight signs of discolouration and was wanting to attack this issue before it became a problem....The plan is to give it a good clean off with WD40 and apply  3-IN-ONE Professional White Lithium Grease 
   
I had read that in some instances that you dont grease doors hinges etc (cant think why not) So was wondering was it OK to go right ahead or was there some reason not to.
Also what lubricant should I be using on the sliding door rail/mechanism
all being well I plan on keeping this van for quite some time so would appreciate knowing whats best/products for lubricating these areas 
Thanks for any replies or alternative suggestions

 Summer dreams ripped at the seams
But, oh, those summer nights!

[Opensauce]

I use silicone lubricant spray. It's non oil based so ok for plastics. Seems to work well on hinges & sliding door.

[BigC]

Cheers Os.
3in1 also do a Silicone based product, I will take a look at that
Regards
C

[ron]

I use M/Cycle chain lube.It penetrates & then sets.

[Jed Clampit]

It's silicone  for me it won't dry out very long lasting .