For starters, USCIS will presume that if your marriage took place within a very short time of entry to the U.S. -- typically 90 days -- the purpose of the entry was to get married. No matter what, it's best to wait this long before the wedding.
Propane has a few advantages of gasoline, of course. It tends to burn more cleanly, itâs cheaper, etc. Still, nothing is perfect. Like any fuel, LPG/propane has some draw-backs that youâll definitely want to be aware of before you âpull the triggerâ and finally convert your car to propane.
But household propane is not usually kept in a liquid state by a low temperature. Instead, high pressure is used. In order to keep propane a liquid at room temperature (70 F or 21 C), it has to be held in a tank at a pressure of about 850 kPa. This can be accomplished with a strong metal tank. In contrast, to keep methane a liquid at room temperature requires a tank that can maintain a pressure of about 32,000 kPa.