Hey guys, I don’t really know much about cars, not yet of course, but I had a question! So I have a Lexus ES 350 2007 with little under 49k miles on it and I went to the mechanic to get a shaking issue fixed. Turns out that he replaced a coil and after doing so we drove the car and it marked another coil. My dad said that it would be fine to just change that other one and leave it like that if it runs fine. But do you guys think I should replace the other 5? Also if I have two new coils and 4 old ones, could the old ones somehow damage the other two? I need an opinion since I’ll be spending an addition 600 if I want all of them replaced . Thanks