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Oil Drain Plug Size?

dreinertuwm

New CEG'er
Joined
Jun 21, 2008
Messages
21
Location
Milwaukee, WI
Quick question: I have a 99 SVT (Built Jan 1999), does anyone know the oil drain plug size. I've called three places and they said either 12 or 14 mm? Its slowly slowly dripping oil but I don't want to drain it early to find what size it is for a new one.

Is there any reason why they leak or how to prevent it?

Thanks for the help.

dreinertuwm
 
the plug is M12-1.75 thread size (15mm head size)

The reason its leaking is either that the gasket (or molded gasket) is split, cracked missing or that the last time the plug was removed the gasket stuck to the pan and then a new bolt/gasket stacked on top of it so you have two gaskets on top of each other.

The only other option is that the threads in the pan are marred and you are leaking from the pan and not because of the bolt.
 
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