Anyone running used veg oil?

[Jason]

I finnaly found a source for good waste veg oil, the happy wok just down the street! I have had a filtration system built for about a year collecting dust in my garage as the first hookup I thought I had for oil fell through. Just wondering if anyone is running it in their Volvo or other diesel? Are you blending it or running a two tank system? I was going to blend for the simplicity of not screwing around with the car and two tanks, but with all the different "blends" people do, its kinda hard to nail one formula down that will work for sure. Any info or experience would be great.

Jason