Can aeroshell 33ms be used instead of aeroshell 33?

Can aeroshell 33ms be used instead of aeroshell 33?
AnswerThe Shell website says that it is fully compatible with Aeroshell 33.However, note this statement:
"AeroShell Grease 33MS is a direct alternative to AeroShell Grease 17, but when changing from (clay-based) ASG 17 to (Li-complex based) ASG 33MS, the normal rules on grease changing should be applied."Link: http://www.shell.com/home/content/aviation-en/aeroshell_site/33ms/grease_33ms.html