Compare The Green Machines


WaterGas Injector Brown's Gas Electrolyzer Brown's Gas Injector

Sale Price
(limited time only)
$75.00 $185.00 $195.00
Gas Mileage Improvement 3–5+ MPG 10–20+ MPG 15–25+ MPG
Installation Time 30 min. 2–4 hrs. 45 min.
Electrical No electrical parts Switched with 10 amp fuse to battery connector Transformer Electrolyzer and Air Pump
Water / Electrolyte Uses tap water Uses Distilled Water with 1 tsp. Baking Powder Uses Charged Water with 2 tsp. Hydrogen Peroxide
Change Water Refill & clean in 3 mths. Refill & clean in 1 mth. Refill & clean in 5–7 days
Kit pays for itself in... 39 days 61 days 50 days
Savings/month1 $58.33 $90.74 $116.67
Savings/year1 $700.00 $1,088.89 $1,400.00
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1Estimates for a 20 MPG car, price/gallon of $3.50, mileage/month of 2,000, and a mileage percent improvement of 20% (WaterGas Injector), 35% (Brown's Gas Electrolyzer), and 50% (Brown's Gas Injector). Based on your vehicle and local price of gas, results may vary (potentially, even better than estimated!). Please contact us if you have any questions or would like to share your success story. For a list of commonly asked questions, please visit our FAQ page.