I have A 2012 Jeep grand Cherokee. The service dprtmnt. wants to do maintenance on my car including the differential fluid, the fuel injection and the transfer case. It has 55,000 mls. Necessary?
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https://www.google.com/search?q=2012+Jeep+Grand+Cherokee+Overland+Summit+4WD+owners+manual&ie=utf-8&oe=utf-8
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Starting on Page 637 is the maintenance schedule from that link. See for yourself... according to that -- no not necessary
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