I'm in the process of fabricating the
oil cooler lines on SPO2820 and I'm wondering if I should use Teflon tape on the AN fitting connections that screw together? Also, the AN fittings that screw into the remote
oil filter mount on the side of the engine already have "o" ring seals so I probably don't need to use the Teflon tape on those connections?
What is best practice? Thank you in advance for any thoughts on the topic.