Don't know where to post this question, but somebody will move it I'm sure. Only bought my Ram last November, so still new to diesel. I have found a station here in Anchorage that sells both diesel #1 and #2 diesel. It has been around 15 degrees during the night, my "Casper" is inside, but sets out all day long. Which number of diesel should I buy ($2. 67 yesterday. ) Also, years ago my Father in law was a diesel man and never tired of preaching the joys of diesel. Why is diesel so much more than regular now, but way back in the 60's it was cheaper. Just curious, as I love this truck, but feel real sorry for trucker friends that must pay these prices.