yeah, squealing tires means low pressure, usually, and it leads to bad side-wear which dramatically reduces traction

anything that gives you a spidey sense spook you should check up on, even just to briefly search on the web for info about it, almost every problem has been asked about on the internet, whether it be on quora or some specialist forum

i just want to repeat also, it's not worth the saving for the cheap gas, get the premium stuff, always, this will make your engine last easily 20% longer, plus it gives you about 5-10% more power

every thing that seems off is a problem, always, never ignore it