I tried searching for answers to this question already but didn’t find any direct answers. Basically, a couple of guy with diesel Rams and F350s moved into my apartments. They are good neighbors for the most part, but they (and their friends) insist on idling their trucks constantly. I’ve brought it up but they swear you are supposed to idle diesels for 10 minutes before driving. Their friends will stop by and leave their trucks running for half an hour while talking. It’s annoying a lot of people. I’ve hesitated to complain to management because I’m on good terms with these guys, so first I want to get a better understanding. I’ve googled this issue and found a lot of conflicting information.
For context, we live in a climate where the temp rarely drops below freezing, and I’ve never seen any of these guys hauling anything. My knowledge of diesels is limited to the one old truck we had when I was a kid, but we never idled it for extended periods. The most we did is a few minutes of idling after we pulled a trailer. In fact, idling it before driving never moved the temp gauge at all, to my recollection. So who is right? Do they actually need to idle their modern diesel trucks? Or are they needlessly driving their neighbors nuts?