Typically, both the isoparaffin and n paraffin synthetic fluids contain {HEAD ~ less than about 1 weight percent sulfur}, {TAIL ~ less than about 1 weight percent nitrogen}, and less than about 1 weight percent oxygenated compounds 
Typically , both the isoparaffin and n paraffin synthetic fluids contain { HEAD ~ less than about 1 weight percent sulfur } , { TAIL ~ less than about 1 weight percent nitrogen } , and less than about 1 weight percent oxygenated compounds
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH