Packard Forum Index » Post-War (1946-54)

I was going to use dot 3 to service my brake system. Notice that I have synthetic dot 3. Is that ok to use? Or should I find non-synthetic?

Also what is recommended to use on the star adjusters for the brake shoes? Looking for something to use as an anti seize for that.

Why not just step up a click and go to DOT 4? Fully compatible with any residues of DOT 3, but offers somewhat better characteristics, including a higher boiling point.

Sure, by all means use some never-sieze type product on the starwheel threads! Absolutely. Just take care not to get any on the brake lining and drum surfaces.

I use DOT 4 synthetic is all my vintage cars and never a problem. Some say it could damage the brake light switch but I’ve never had that happen but if it did, on a Packard such as yours they are inexpensive and easy to replace.

Sometimes I use Molycote (?) on the star adjuster or even just easy to find disc brake anti-squeak grease.