Join Date: Nov 2007
Location: Hampton, VA
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Its debatable really. I run Amsoil in both sumps and royal p in the rear diff. But just because your running synethic doesn't mean you can change it every 50k or whatever they are claiming. An oil bypass will deff, help ya in the long run I keep meaning to do one but im lazy so i haven't.
I change oil about every 7k or so.
The argument is that if your changing oil that often with synethic why are you wasteing money with Rotella is a lot cheaper and can do every 5k. Well because I wanna and i can. Also look in flushing it out before adding the synethic so its not conventional and synethic oil in there. and don't alternate keep synethic or conventional unless you wanna flush it out every time.
EDIT: If you yahoo/google oil anaylsis Pheonix, AZ a company will come up and they will send you a testing package for free then you mail it back and they process it and then charge you $22 I think.
08 Super Cab F250 4x4:
Performance: No Cat/DPF, Spartan 275, MBRP, aFe, Snow Performance, NX, Farmboy Fab, Spearco, SunCoast, Autometer, Mag-Hytec, Fox Shocks, CCV Mod
Looks: Rize Quad Link & Steering Stabalizer, KMC, Nitto Terra, Herculined Rocker Panels, AVIC Z2
96 12V Reg. cab Long bed auto, BHAF, CFM, KDP killed, 0 plate, DDP4, HTT 64/71/14, ATS Exh. Manifold. Waiting to install 7" mitre single stack 60# springs 4kGSK.