Originally Posted by
HI-TEK
Great question, and you are correct, it is difficult to tell any difference between them.
Both the Aqualube 3000 and 5000 will work exactly the same way. You can mix them together without any problems.
The only difference between them is the particles of the Aqualube 5000 are slightly bigger so the liquid is a little more Milky.
Aqualube 3000 has particles about 0.02-0.05 microns and is less Milky in appearance, and Aqualube 5000 has 0.03 to 0.08 microns particle sizes.
Aqualube 3000 dry residue is less visible, where the dry residue of the Aqualube 5000 has more ghostly dry white film residue.
Some like less whiteness residue, and others want more whiteness residue so they can see that the product was treated.
Once sized, it is almost impossible to see any film left on load bearing surfaces.
There is not much more available of the Aqualube 5000 and will be probably phased out. The highest percentage users want the Aqualube 3000.
I hope I answered your question.