Robie,

You use both tanks.

The expansion tank is the one under the engine hatch that can be accessed
only by removing the hatch.

The overflow tank can be reached through the license plate door.

With the engine cold, remove the expansion tank cap, fill the tank, install
the cap, and close the hatch. That's it.

To service the overflow tank, just open the license plate cover. Be sure the
coolant is kept between the minimum and maximum marks.

John Rodgers
"88GL Driver

Robie Pierce wrote:

> What is the How & Where to properly fill the radiator overflow/expansion
> tanks ? Do you use the containers under the engine hatch, or the one
> behind the license plate ? How much fluid? With reference line do I use?
> I have a 91 Carat just back from the Shine parlor. Looks like new red
> Wolfie.
>
> Cheers, Robie