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HOW MUCH OIL SHOULD I PUT IN MY SUPERCHARGER GEAR CASE ? HOW MUCH OIL IN MY SUPERCHARGER ?
Most ROOTS BLOWERS  take 14 – 16 oz., Except for Retros – they need 20 oz.   * THESNOUT LENGTH MAKES IT VARY - LONGER SNOUT = FEW OZ MORE 

SMALLER BLOWERS LIKE OUR 192- 250  , Weiands, and B &M’s take 8 – 11 oz.  * SUPER LONG SNOUT WEIANDS  -TAKE FEW OZ MORE 

TBS-XR1'S  & XR2'S ---  FRONT:  TAKES AROUND 29 OZ  DEPENDING ON SNOUT LENGTH   - REAR : FILL UNTIL IT RUNS OUT OF THE TWO FILLER PLUGS  

IN ALL CASES USE  75-90 GEAR OIL - SYNTHETIC IF AVAILABLE -  WE STOCK IT