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The sealed oil reservoir in a supercharger is designed to last the life of the vehicle. Changing the oil is not recommended unless you suspect contamination, leakage, or other issues like bearing failure. Also, if your vehicle has an abnormally heavy duty cycle, such as racing or towing, you could consider changing the oil at regular intervals such as 20k, 30k, 50k, or 100k miles depending on usage.
More information below.
If you do want to change the oil there is one fill/drain plug on the front face of the front cover. It will probably be an Allen type plug. You will have to suction out the oil using a syringe or other method before replacing with new oil. Fill levels are dependent on application. For aftermarket units, please consult the aftermarket partner company that produced that specific kit.
For OEM units, please see the list below or email infosupercharger@eaton.com. New oil can be obtained from any GM or Ford service parts facility, or from one of the Eaton aftermarket supercharger partner companies or remanufacturers. Please make sure you do NOT use any other type of oil, including synthetic motor oils. These will cause failure.You can under-fill or overfill the blower, either way will cause failure.
Rotor Type
Size
Oil Fill (ml)
Oil Fill (fl oz)
TVS
R1320
155
5.2
3-lobe
M45
145 + 40 (rear)
4.9 + 1.4 (rear)
135
4.6
110
3.7
M62
M24
35
1.2
M90
240
8.1
3-lobe hybrid
H122
140
4.7
Ford Harley-Davidson F150
M112
215
7.3
225
7.6
205
6.9
100
3.4
R1900
150
5.1
R2300
115
3.9
40
1.4
