What vehicles use a 6 volt battery?

We just replaced our brake pads yesterday. Today we noticed brake fluid leaking from the left front side. What is causing this? How many catalytic converters are on a 2000 chevy blazer? Your scooter is blowing a lot of smoke from the exhaust? How do you reset the engine light in a honda jazz? Where is the fuel shut off switch of a 2013 Hyundai accent? How do you fix a tail light in a Kia Rio cinco? Why does your 94 ford f150 xlt smells like gas bad when you run the heater? How do you replace the brake light bulb on a 2002 Isuzu axiom? Which tool(s) is best for oil clearance on crankshaft bearings? Where can I buy a glass retainer bracket for a older burning log turbo 10 wood stove? Can the spare tire rim on a 2002 dodge caravan accommodate a regular size tire? Where is the fuel check valve located on a 1994 GMC Sonoma? Should Grandmother be hyphenated? Where is the turn signal relay on a 325i 2003 BMW E46 M3? What is the firing order for a 1988 Ford 460 engine? Where is the crankshaft position sensor located on a 1997 dodge Dakota? How do you tell which sensor is bank 1 sensor 1 on a 2002 mercury sable? Which item are part of the AC system? How many miles to replace the catalytic converter? What outboard engine is this model AJ15BACUD?