What should RPM be in Buick lacrosse at 60 mph?

The RPM at 60 mph in a Buick Lacrosse will vary depending on the year of the vehicle, the transmission (automatic or manual - most Lacrosses are automatic), and the gear the transmission is in at that speed. There's no single correct answer.

To find the approximate RPM, you could:

* Consult your owner's manual: This is the best source of information. It may have a chart showing expected RPM at various speeds.

* Use an OBD-II scanner: These devices plug into your car's diagnostic port and can display real-time data, including RPM and speed.

* Search online forums: Search for your specific year and model of Buick Lacrosse on automotive forums. Other owners may have posted their RPM readings at 60 mph.

Without more specific information about your Lacrosse, I cannot give you a precise RPM.