I'm using 3-IN-ONE SAE 20 Motor Oil for electric motors → http://amzn.to/2k63XWl If your motor has little yellow (sometimes black) removable plugs, you can oil the motor without taking the whole thing apart. Taking the motor apart is not too bad of a job. Just be sure to take advantage of the situation and clean the dirt and dust off your blower wheel.
As with any project like this turn the power off before you begin. Also, take photos of the wire connections before you disconnect them.
The blower wheel has been weight balanced like a car tire so remember to be careful when handling it.
If your furnace blower motor is squeaking you want to oil it right away. Seriously. It will only get worse with time and you don't want to have to replace the motor is that can be avoided.
Best of luck on your repair!
Adam Hill -DIY
PO Box 95278
South Jordan UT 84095
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