So the dealership went that extra step checking other things than just yhe oil change and that's an issue? A difference of 7psi easily could be different gauges and the difference be checking the tire hot or cold. Also though yes many techs will set the tire pressures a few psi high to avoid the usual "I'm to lazy to realize my tpms light is on because my tires are a?? 4psi low so ill come into the dealership"
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