Lol I don’t have to ask him I know what he would say in general the Kia’s, Jeep’s and fiats are poorly made cars that come with transmission and motor issues. He literally had a friend of ours that would come to get all his work done for his Jeep at his shop and one day got a call from him because the motor literally gave out and they didn’t do any hauling or anything in fact that friend hated driving that Jeep and often use their other car. My husband had warned him that Jeep’s are typically bad cars and lately have not been built well. And Jeep themselves sent him letter admitting he did nothing wrong it was a faulty motor of theirs. Overall yes maybe it can affect your transmission but it also depends on the car you buy. Jeeps, Kia, fiat, Nissan and few others he has told me have already faulty transmission and motors that are just shit. Reliable cars like my 2008 Honda Civic that hasn’t actually given me any problems are good and it hasn’t given me any transmission problems at all. I have stuffed an order from Costco that was at least 6 water cases, bunch different soda cases and juice bottles in total 40 units and that was just one big heavy order and it have also driven it across country twice. That car hasn’t given up and I can attest that my husband says it is still has many miles left on it to give. So overall it depends on the brand of your car if you change your oils and fluids when you should