What is more predictable?

[Some Gump]

Quick friday question for the forum..

What is more predictable?

A - the rising and setting of the sun

B - OPC selling you a brand new screenwash despite the fact there are several already in the pouch on your spare wheel?

As a further question, is the quantity of porsche screenwash in the wheel pocket equally reliable as stamps in the service book? I have exacly the same number...

[thegoose]

I had the same with a litre bottle of oil and zippy pouch, which really annoyed me. I expect to use washer fluid between services but don't necessarily expect to use oil.

[Magic919]

They've never charged me for mine.

[Some Gump]

It's not a complaint, more an observation