Confused over GMRS/FRS channels and frequencies

I own seven different GMRS/FRS radios, and I don’t hold a GMRS license.

Since I am content only to use the FRS radio channels, I have no plans to buy a license to use the GMRS radio service frequencies.

However, I have found the information in my walkie talkie manuals is unhelpful, even confusing.

The book I have from the Maxus brand FRS/GMRS radios tells me that channels 1-7 are FRS only. The manual for my Motorola Talkabout FRS/GMRS radios says that channels 8-14 are FRS only.

However, the FCC website stated that 1-7 are shared between GMRS/FRS, while 8-14 are strictly FRS only.

What I need to know is, can I use channels 8-14 on my Maxus radios without having to buy myself a GMRS radio licence?

Get 2 miles or more from an FRS/GMRS radio