Compression Ignition Addict
Join Date: Nov 2006
Location: New Jersey/Pennsylvania
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5W-40 vs. 15W-40
For all you guys out there running Amsoil in the summer in a 7.3L PSD:
Why run the 5W-40 instead of the 15W-40 HD Diesel and Marine Oil?
I'm interested in what you all have to say about this.
2002 F350 7.3L PSD HO SCLB HD 4X4 6-SPD LS 3.73
Bilsteins, Mag-Hytec Diff. Cover, FS-2500 Bypass Filter, Billet T-Stat Housing, 203* T-Stat, 4" MBRP SS TB, B&W GNTB.
2006 Jeep Liberty CRD 4X4 Some Mods.
2003 Cobra Coupe