Don & Lucille wrote:

Is there such a thing as using too much lime on a lawn? What would happen if
the soil was too sweet if there is such a thing?

Highly alkaline soil ties up certain micronutrients, making them
unavailable to the grass plants. Iron, for one. In my part of the
country soils tend to be quite alkaline, and grass, even fertilized
grass, tends to be a more yellowish-green. Get the soil pH lowered,
or provide additional iron, and you can watch the grass turn a
darker green.

Besides, adding anything your lawn doesn't need just wastes your
time, effort, and money.