Originally Posted By: 3oilmat1
Is it ok to be a quart low, will that cause any damage?
It may cause accelerated wear, but the extent of it would obviously depend on how long you will run it with such low level.
It also depends on your overall oil sump capacity. Like the other poster mentioned, say your oil sump is 3.5 quarts (typical for many smaller engines), then being 1 qt low means that nearly 30% of the oil is missing. Personally I would top it off ASAP.