Thread: ZDDP oil additive
View Single Post
  #13 (permalink)  
Old 08-11-2008, 02:36 PM
jwd's Avatar
jwd jwd is offline
Senior Club Cobra Member
Visit my Photo Gallery

 
Join Date: Feb 2004
Cobra Make, Engine:
Posts: 1,226
Not Ranked     
Default
Just use CI-4 or CJ-4 rating oil for diesels. It has more than enough Zinc for flat tappet motors. Additives are a waste of money.

Jim
Reply With Quote