[GMC2500HD]

Just curious about this but Tornado, the company that make the Tornado fuel saver makes one for the Duramax and I was curious if anyone had used one or would consider it? I read some stuff on this and am not sure about these and whether they will work. I know several people have used them on gas vehicles and seen an increase in fuel mpg. I am just curious if this thing will work. Thanks

 

[JohnnyO]

I'ts just a gimmik to get your money.

 

[chevmeister]

ok the tornado spins the air..... in a diesel you want the air to go straight in.... save your money

 

[GMC2500HD]

I was not going to buy it, I was just curious about it. I have heard a few things and wanted to dispell the rumors. Thanks