Hi All,

I see there have been many posts about oil for the Libby, but I was wondering does anybody know what the differences are between the MS and API rating systems?

The Liberty manual says API-CF certified and meets MS-10725 requirements. So what does that mean

Do higher API certifications like CH-4, CI-4+ or CJ-4 automatically meet the MS-10725 requirement OR is the MS requirement something entirely different OR is the MS requirement just some warranty crap from DC that really doesn't matter

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2006 Liberty CRD
Side Steps
2.5" Daystar Lift
Richard Cepek 16x8 DC01 Black
Mickey Thompson Baja ATZ Radial Plus 245/75 R16

As for CF...any C H-I-J will meet and/or beat CF

Chrysler Material Standard is just another way to describe oil characteristics.

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Founder of L.O.S.T.
2006 CRD Sport
Mods: GDE Hot Tune w/ 364#@2000rpm/Air Box /3" Str8 Exhaust/ASFIR Alum Skids/245-75R-16 Cooper STT PRO/OME LIFT w/Clevis & 4 Spring Isos/AirTabs/Rigid 10" S2 LED/4xGuard Ctr Matrix Bumper
Drag Strip:Reac=.1078_60ft=2.224_1/8=10.39@64.8mph_1/4+16.46@80.8mph

Yeah that is basically what I have read. But how are they different? or are they not different?

Will a CJ automatically meet the MS-10725 rating as well

_________________
_________________________________________________
2006 Liberty CRD
Side Steps
2.5" Daystar Lift
Richard Cepek 16x8 DC01 Black
Mickey Thompson Baja ATZ Radial Plus 245/75 R16

Yes CJ will meet or exceed that standard. The API standard is the government standard whereas the MS is the Chrysler group manufacturer's standard, from what I understand. Most major automakers keep their own standards for lubricants and whatnot