Thread: Which motor oil are you using?
View Single Post
  #40 (permalink)  
Old 02-04-2011, 10:57 AM
CobraEd's Avatar
CobraEd CobraEd is offline
CC Member
Visit my Photo Gallery

 
Join Date: May 2000
Location: Northern VA, VA
Cobra Make, Engine: Classic Roadsters
Posts: 2,765
Not Ranked     
Default
Quote:
Originally Posted by madmaxx View Post
Mobil 1 15w 50 does not meet the SJ rating and therefore has the added zinc and phosphorous. Zinc and Phosphorous kill emission components, cat converters etc. You will also notice Royal Purple does not meet them either.
Royal Purple states that if you want the added ZDDP, use their "racing" oil which is the same but with added ZDDP. I use their regular street oil and add my own ZDDP.


.
__________________
LIFE IS TOO SHORT TO WORRY ABOUT GOOD GAS MILEAGE
________
Utinam logica falsa tuam philosophiam totam suffodiant!
________
Reply With Quote