Our fleet trucks ran on NG, some still do. NG fuel is IIRC 130 octane rated, and burns much cleaner than petroleum based fuels. You can also go twice as long between tune-ups. Like truckemup97 said, you will lose 10% to 15% power loss; but the trade off in savings will more than compensate for the difference. IMHO

I'd go for it, if I were you. Let us know your results, if you do decide to go that route.

-Bearman

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ΜΟΛΩΝ ΛΑΒΕ..."ERIN GO BRAGH"