Hummer H3

by David Skrock
(Grants Pass, Oregon)

Am I able to increase fuel mileage on a H3 Hummer that has constant 4 wheel drive?

Comments for Hummer H3

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by: Doug

Hello, Doug thank you for your interest in our products.

Yes, of course, hydrogen on demand works on all engines except electric hybrids.

For your H3 Hummer 3.5L, the right kit is the
D-7 Hydrogen Generator Kit with the FS2 Chip.

Feel free to email us at hho@hydrogen-generaotrs-usa.com with any other questions you may have.

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