Plug N Dike By ENPAC Premix 4 lbs. Where larger quantity may be required - Take a handful and apply it directly into and around the area leaking.  

Spill Response Kit | Plug N Dike Contains Plug N Dike Premix, two pieces of poly compress/expand foam, gloves and ties. Plug jagged leaks in truck fuel tanks, damaged leaking hydraulic lines...

Wood Plug Set | Plug N Dike By ENPAC Cones:  2" x 5/8" diameter 3" X 1" diameter 4" x 1-1/2" diameter Wedge: 4" long x 1-1/2" wide x 1-1/2" tall