Rust inhibitors?
 

I just brought my car from New England to Florida. I'm planning to spray the car with the Fluid Fill anyone suggest anything else?

The car does have surface rust on the frame, tie-rods, shocks etc. It's 50+ years old so to be expected..

This is not a show car!

Fluid fill seem like a good choice?

I want to stop rust and if I can get rid of the surface rust with a similar product I would be happy.

Fluid Fill or Fluid Film. No experience with fluid film bit it will wash/wear off over time.

My chassis was coated with POR-15 some 30+ years ago and is still looking good. It's not cheap but it does work. Prep work is important. Remove any dirt and loose rust scale. POR-15 adheres to the rusty surface and is moisture activated. So it doesn't trap the moisture underneath and promote more rust. It won't adhere well to a bare metal surface, it's meant to applied over a rusty surface. You'll hear good and bad about it. If the prep work is good I think you'll like the results.

It's really thin and smooths out as it dries, no brush marks. Don't get it on you or anything else you don't want it on, it don't come off.

Hank is right...POR is good stuff to use. POR stands for "Paint Over Rust".