When you drain the oil look if there is water comes out first when you open the drainplug.
When there is no water coming , only refill whit fresh oil.
Simon
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.