Name - brand gasoline usually contains enough additives to keep typical engines free of serious buildup under normal conditions. (humblemechanic.com)
There have only been a few minors problems with the engine, which were typical engine issues from a well - driven vehicle and they were relatively inexpensive repairs. (autolist.com)
Absolutely no sound while stopped, revving in neutral other than typical engine sound. (mechanics.stackexchange.com)