What type of grease are you T'ers using? Is modern grease going to provide the correct lubrication due to it's heat resistance.

For what part of the T?

I use modern marine grease (blue or green usually) for wheel bearings on boat trailers etc. as it works well and lasts in the Pacific Northwest weather. No part of the T is too high stress or demanding on a grease.

I like chain saw bar oil for all the oil cups too. Learned that here on the forum, works great.