Gas Eggconomizer is a visual display device which indicates {TAIL ~ the rate} of {HEAD ~ fuel consumption} in an internal combustion engine 
Gas Eggconomizer is a visual display device which indicates { TAIL ~ the rate } of { HEAD ~ fuel consumption } in an internal combustion engine
OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH