Are you sure the TBN is 12-12.5 on the 5w30? I know it is on the 15w40, thought the 5w30 was TBN 10, not sure though.
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1985 300D Turbo ~225k
2000 F350 (Powerstroke) 4X4, SWB, CC, SRW, 6spd ~148k
1999 International 4900, DT466e (250hp/660 ft/lbs), Allison MD3060 ~73k
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