I have a 2008 Dodge Grand Caravan with a 4 liter engine and 253,000 miles on it. I really love the car and don’t want to part with it for any reason just yet. For the last year or so I have been experiencing occasional stalling issues. Generally at cold start up (but not always) and within the first mile or two of travel – all kinds of weather. It is a mechanical stall only – all electronics continue as if nothing is wrong. I have taken the car to several auto repair shops and have had the codes checked at the Dodge dealership to no avail – nobody can really tell me what is going on. With the recent decline in gas prices, I decided to switch from regular lead-free gas to mid-grade and/or premium gas. The stalling problem declined, but did not stop entirely. I am familiar with Sea Foam from the Menards store where I work and decided to give it a try. Much to my surprise and delight the stalling stopped – until I again put regular gas in it again. Any suggestions as to why and/or how I can further improve my engines performance?