Motor Oil Grading....what should I use on a gsr with 86k. 10/30 or ???
My LS has 190k miles and has only had 5w30. For cars with the basic I/H/C/E this is safe. 10w30 as well. You really don't need much more.
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Fuster_Cluck
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Nov 24, 2003 10:45 AM




