Thanks for this info Larry.
I went to Advance Auto Parts and they have just started a special on this. 5 quarts and a Bosch filter for ~$32 with tax. Even mentions that it is designed for flat tappet cams on the bottle.
PANTERA INTERNATIONAL
A DE TOMASO CAR CLUB
Presents the De Tomaso Forums
The On-Line Meeting Place for De Tomaso Owners and Enthusiasts From Around the World
Clicking on the banner will take you to the sponsor's website.