Turbo-TA:
This synthetic oil topic has been gone over time and time again in past posts.
Learn to use the SEARCH button in the top left hand side of your screen and search for synthetic oils and you will find tons and tons of good information that members have posted here in the past about this topic.
The SEARCH button will find you lots of good information for your use so it is important to learn how to use it.
hope this helps
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2003 SLT Duramax CC/SB Carbon Metalic, Juice\'d, JK Light harness, HD sprayed box liner, J&J Millennium running boards, Fumoto valve, Tekonsha Prodigy brake controller, TFP Stainless door handle inserts, Michelin LT265/75R/16, combination Tool Box & Fuel tank(165L) with timed transfer flow, 2 Micron CAT Primery fuel filter, dndstarr@shaw.ca<p>PIC\"S <a href=\"http://photos.yahoo.com/bc/hx30/lst?.dir=/duramax\" target=\"_blank\">http://photos.yahoo.com/bc/hx30/lst?.dir=/duramax</a>