Warming Engine Before Oil Change?

[rdockery_3]

I know that Rotax recommends warming the engine to operating temperature before draining it, but I couldn't find an actual number listed in the maintenance manual. Is 122 degrees considered operating temperature or do I need to get the temperature up to the 180-190 range?

 

[jsalley]

I know that Rotax recommends warming the engine to operating temperature before draining it, but I couldn't find an actual number listed in the maintenance manual. Is 122 degrees considered operating temperature or do I need to get the temperature up to the 180-190 range?

Anything over 122 should be fine. The goal is simply to warm the oil so that it is less viscous and will drain more readily/thoroughly.

 

[Mel]

Anything over 122 should be fine. The goal is simply to warm the oil so that it is less viscous and will drain more readily/thoroughly.

And also to make sure that contaminates are suspended in the oil rather than settled on the bottom.