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.
Propane is one of a group of liquefied petroleum gases (LP gases). The others include butane, propylene, butadiene, butylene, isobutylene and mixtures thereof. Propane containing too much propene (also called propylene) is not suited for most vehicle fuels.HD-5 is a specification that establishes a maximum concentration of 5% propene in propane. Propane and other LP gas specifications are established in ASTM D-1835.ropane is one of a group of liquefied petroleum gases (LP gases). The others include butane, propylene, butadiene, butylene, isobutylene and mixtures thereof. Propane containing too much propene (also called propylene) is not suited for most vehicle fuels.