smart51
Established member
I have a gearbox oil leak, so I need to top it up. I know I need a 13mm square socket for the filler. What size allen key do I need for the drain? The biggest I have is 10mm which is way too small.
Edit to ask, what is a good thread sealant for the drain plug thread?
Edit to ask, what is a good thread sealant for the drain plug thread?
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