Recently i had the oil changed on my maxima. They put a 5w-30 instead of a 10w-30 and my car started runninig hot. the ? that I have is, could my cars heater and air still be working if the thermostat or water pump was going out.
overfilling won't cause it to run hot...
the only thing I know of they could have possibly done is to hit some vacuum hoses while changing the oil filter... disconnecting a few vacuum hoses to the EGR or something can make it run hot...
I don't think the issue is related to the oil change though..
Yeah, it's not the oil, make sure you have coolant/no leaks, and then look under the hood for something loose or dissconnected that the lube guys might have disturbed. (the term lube guys is disturbing, but u get the idea)
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