Something to worry about?

[Ves]

...
2) dino provides more lubrication protection during the critical period when you first start up (he claims that since it is more viscous, it "sticks" better to the FD ball bearings and prevents metal-to-metal contact when starting from cold).
...

Charlie

From what I've read, that's not true. One of the advantages of synthetic is that it DOES stick to metal better and prevents wear during startup.

[challey]

Not saying that this is so, just passing along what Paul Glaves said . . .
Charlie