Most visitors online was 1660 , on 12 Dec 2020
HP1300 is almost a third more viscous than the 1000, but that series is all synthetic. It still only has a recommended shelf life of six years, and that's with keeping it tightly closed and in the dark, which should be standard practice for all oils.Is HP1000 okay in place of HP1300 or are they too different?
The Microgliss D series are mineral/animal oils, which is probably why nuno's has turned that colour after a few years. I have a bottle somewhere which is ten years old and it's khaki coloured; needless to say, I don't use it any more.By the way, I have a new bottle of D5 and it looks a little lighter than the one pictured.