Transmission Slipping???

[Latervikes]

I recently acquired a 2011 Subaru Legacy Premium. I’ve never owned a vehicle with a CVT transmission before. I think the transmission may be slipping but just can’t tell for sure. The vehicle has been in my family since new and has been well cared for. It’s a high mileage sled with almost 220k on her. If you put your foot in it the rpm’s go up fast but not a lot of acceleration. Feels to me like maybe some slipping going on…..just driving it normal it goes just fine and I drive it pretty mellow. Just wondering if there is a sure fire quick test to determine if it is slipping.

 

[Rattlenbang]

You can check the CVT fluid to see if its dark or smells burnt. You know these things absolutely need regular fluid changes, and that's been done?