Odometer

Hey everyone I am new to this board and have found some very good info on it.
Now to my question
Will the odometer on an 87 Gn register 130,000 miles or will it show 30,000 on it.
I have found one for sale at a dealership and they say it shows 30,000 miles but they figure it is 130,000. Car is a bout 150 miles from me so haven't had a chance to look at it yet.
Thanks for the info
Rick

They only have a 5 digit odo. so it will only show 30,000.

Thanks gn1220