Roughly 1/12/04 18:49, CaptainKrunch's monkeys randomly typed:

> The last time I looked at Prestone it does have silicates in it which is an
> abrasive.

? Silicon dioxide can be used as an abrasive, but a silicate is not
silicon dioxide, nor is it a silicone, which is also not abrasive
as your girlfriend may or may not be able to demonstrate to your
satisfaction. As for silicate being "an abrasive" check out
ordinary old sodium silicate... a liquid.