HOWES GUARANTEES 5%. SEE WHAT THAT'S WORTH TO YOU.
Enter your miles, your fuel price, your fleet — and see exactly what the Howes guarantee puts back in your pocket.
100+Years Trusted
5%Min. Economy Gain
100%Money-Back Guarantee
Step 1 — Your Vehicle
Step 2 — Expected Fuel Gain
Step 3 — Your Numbers
Number of Trucks1 Truck
Monthly Miles / Truck10,000
Current MPG6.5 MPG
Fuel Price / Gallon$3.75
Tank Size (Gallons)150 Gal
Your Monthly Treatment Cost$—
Based on current Diesel Defender retail price. Verify at howesproducts.com.
You Save This Month
$0
after treatment cost
You Save This Year
$0
per truck annually
Your Breakdown
Gallons Saved / Month0 gal
Pays For Itself In0
Injector Savings / Year$0/yr
Treatment ROI
0%
Return on treatment spend
Savings vs. Cost — Monthly
Fuel Savings$0.00
Treatment Cost$0.00
Fleet View
$0
Annual Fuel Net
$0
Injector Savings
$0
Total Fleet Value
Howes Guarantee
5%MIN GUAR.
Tested. Trusted. Guaranteed.
Howes guarantees a minimum 5% fuel economy increase with every fill-up — or your money back. Every number above uses that guaranteed floor. Anything above 5% is pure upside for your wallet.
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Disclaimer: Results are estimates based on inputs provided. Actual fuel savings may vary depending on vehicle condition, driving habits, fuel quality, and other factors. The 5% minimum fuel economy improvement is based on Howes Products testing. Individual results may differ. This calculator is for informational purposes only.
