Sample Automobile Worksheet:
Year: 1999
Type: GMC
Model: Sierra Classic 3500, Crew cab, Short Bed
Engine Size: 7.4L
Tank capacity: 26 gallons
MPG Highway: 15
MPG City: 11
Driver fills up 3.5 times per month
Driver averages 1,200 miles per month, 50% city and
50% highway
Average 600 miles city @ 11 mpg and 600 miles highway
@ 15 mpg
Combined average = 13 miles per gallon
Minimum fuel savings with Oxy-Hydrogen = 20% (additional
2.6 mpg)
Average additional miles per tank = 67.6 miles
Average additional miles per month = 236.6 miles = 18.2
gallons per month
Monthly Savings = 18.2 gallons per month @ $3.50 per
gallon = $63.70 per month
SL-50 Oxy-Hydrogen Generator = $1,059.95
Cost of unit $1,059.95 divided by $63.70 per month minimum
savings
Time to payoff = 16.6 months
After 16.6 months, $63.70 savings each month or $764.40
per year