These seem to be newer releases for the S.N/GF-5 motor oil . Correct me if wrong . Go to , http://www.epc.shell.com/ . Click on CONTINUE in lower right corner . Cick on SHELL LUBRICANTS under GRADE . Then click SAE Viscosity Grades . Then click on oil grade of choice ( ex.5w-30 ). Then click on T.D.S. or M.S.D.S to the left of brand / type ( syn , etc. ) of your choice . Click on ACCEPT in lower right corner and then click where it says DOCUMENT on lower left of screen to bring up the T.D.S. / M.S.D.S. in a new window . Make sure to click on the oil with the SAE for newer T.D.S./M.S.D.S. info . Example : Pennzoil Platinum SAE 5w-30 Full Synthetic Motor Oil . If not , you'll get older data . Which you could use for comparison to the newer . Hope this helps and isn't too confusing .
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