Hello again to everyone.

Following up on our discussion, for me personally, having to drive 200 miles per day 250 or 400 would make a big difference for my gas bill. With 17.9 average MPG stated by the manufacturer
22.5 X 17.9=402.75 so ~ 400

So here I am trying to find out why with only 15k miles my 99 VX is so thursty. At Isuzu , they told me that it's cause of the cold weather, but I dont believe it to be the big picture. I realize it's a two ton truck with a 3.5 , but even though , no matter what they tell you, it cant burn as much gas as an89' 8 cylinder ford truck.

Today I tried STP fuel treatment and drove to Fall river, then Brighton, Lynn and then Cape and back. About 290 miles and I still have 1/4 of the tank left , so I reccomend trying it.

I am also going to bid on one of those tornado air systems. I heard that they help some cars.. Anyone tried it ??

Also, is there anyone out there who had tried ultra-sonic spark-plugs on their VX.. Did it save any gas?? When I had the S70 T5, those worked well for me.

Also, those of you who tried calmini or HS air intakes, what kind of result did it have on the power/mileage.??

I have already wrote about the fuel atomiser on E-bay , anbyonw looked into it?

Engine treatment, have anyone tried them, what works well for the VX??

What does Power Drive do ?? Can I apply it on the highway to increase fuel economy??

If anything , what did help improve the gas mileage on your VX ?
Please share your experience with the crowd.... thanks and best regard, Val