| Do not use it unless it has a CJ-4 rating. Castrol Syntec isn't even diesel oil.
FWIW, Castrol's diesel oil is Tection...
__________________ 2007 2500HD "Classic" 4x4, LBZ/Allison, CC/SB, Nerf Bars, Billet Grille & Emblem, Tinted Windows, Incubus Rims, 265/75R16 BFG A/T, AFE Filter, Bilstein Shocks, TransGo Jr. & Mike L. cooler installed by Mike L., MBRP T-409 4" Cat-Back, PPE Blocker Plate & EFILive tuned by IdahoRob... 473hp & 920ft/lbs |