LPG/NG dual fuel?

[lewdwig]

Anyone seen anything like this? It would be able to take advantage of the availability or lower price of either fuel.

 

[Shannow]

Not sure how the mixer calibration would go.

 

[vxcalais]

Are you talking mixing LPG and NG ? Or running either of these with Petrol ? 95% of Gas stations in Australia have LPG pumps, whole Taxi fleet using it, and some trucks. We use mainly LPG, and New Zealand NG. I currently run a dual fuel system, with a mixer setup. I cant imagine running 2 different types of gas, you would need 2 tanks, and program the computer to tune the engine to using either fuel as it comes from the tank...On dual fuel, only lpg/air pass through the mixer, petrol is still injected in. New LPG/CNG use injectors.