External van cleaning products

Just looking for some product recommendations from any of you guys/girls that you use for the external washing/waxing of the van.
I’ve got a shed full of Meguiars GRP stuff from motorhome and some combined wash/wax shampoo and neutral snow foam, all allegedly better for GRP - will probably offload to mate with motorhome 
If it helps I do like to keep the van clean but it might jut be a quick wash/dry day before going away, don’t always have time to do full detailing on it, every time.
Main things was just wondering with it just been same as the car now, mostly metal & paint.
Does anyone recommend these hybrid ceramic type sprays or are they just a similar finish to a good wax coating?
What about the huge amount of plastic - sure we’ve probably moved on from the old back to black in tins, seen these new liquid types or pads - do they work.
Or just a few Autoglym bits to see over winter and give it to someone decent in spring.
Recommendations usually better than trial and error I find
Thanks in advance Sheppy

Kevin   I bet, I use various oils for the worktops and a pig to get off anything it gets on and skins over, that must of being almost old school gloss without the white…
Paul, actually that’s a fair shout, I wonder if all these new liquid stuff is much different from shoe polish.yes used to use that greased lightning in the old caravan days, just always a bit dubious of not washing it first, ours always looks like it’s been rallying by the time we get to 1st site.
Cheers Sheppy
Cheers Sheppy

Autoglym Bumper & Trim Gel 500ml Restore Revives Colour Car Valeting Plastic
Purchased off Ebay. ( sorry can't copy and paste link)

Lasts very well on ours.
Ex chauffeur here, RR & Bentley etc. Used to enjoy cleaning the things " every day". But then I was being paid to do it.
Now I like to keep the van smart but "life is to short". Once a year polish with Mer polish ( blue bottle lasts years 1lt)
Then one cap full in washing bucket, every time you wash the van.

My theory now is....don't clean van before adventure trip, then the weather will be kind for you.
Clean van like mad before trip and it will rain like mad before you get 10 miles up the road.

Cheers guys
Just been to the van actually and the plastic trim more grey than a good black or it’s tired already
Looks like some autoglym trim gel and try some of that ceramic polish every couple of washes just to see over winter at least.
Cheers Sheppy

I use normal car shampoo for everything.  I wash the alloys with a tooth brush and sponge every month after a trip so about 12 times per year.  I wash the front, back and sides nearly as often and the roof probably half as often.  I only use polish and other potions to remove stubborn marks.  I find this keeps the van pretty clean.

Standard oils and grease are very damaging to natural rubber.