Snap-On Compression tester on E28 M5

[Steve1807@xxxxxxx]

Hello,
   I wanted to check the compression in my E28 M5 using a friend's Snap-On 
MT308L compression tester set.  I think that I need an adaptor (EEPV306A) for 
the 12mm threads of the Bosch plugs.  Has anyone else used this set on the 
'88 M5?

Thanks,

Steve

'72 2002
'88 M5

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