I want to install my oil pressure/temp gauges today and I was wondering if anyone knows the size of the tool I need to remove to factory ports on the oil filter housing. I think its an allen key but I dont have one big enough. Also I would like to have it on my ratchet possibly using a breaker bar so I dont strip them.

Can I get away with just removing just the oil filter without draining the rest of the oil? I just changed it and oil is expensive!

Thanx in advance.

 

Just go to sears and buy an entire allen head socket set.