[TR] Green Motor Oil

[suhringtr36 at comcast.net]

I put the '70 TR6 up on jacks to replace the rubber secuions of the fuel lines with ethenol resistant rubber hoses (it has been 13 years since I replaced them anyway). As I was going over the udnerside of the 6, I noticed that there was some oil seeping from the spin on filter, and it was green tinted.  Any idea what could be causing this?

Scott Suhring
'70 TR6
'59 TR3A