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  1. New Stant 18psi Radiator cap causes slight increase in temp?

    General Discussion
    I just thought it was a good idea to replace my Original Radiator cap on my 2007 300C 5.7 Hemi with a new Stant Pressure Release valve cap 18psi to fit in place of the old one, and I noticed when my needle on my temp gauge went to the middle, now then cycles a bit below, and before it was always...
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