The key is to heat the veg oil to reduce the viscosity. That's the reason for second, heated tank and heated fuel line/filter. Start and warm up on diesel, then switch to veg oil, then switch back a little before you shut down (to flush the IP). It's not for everyone or every trip but works great whenever the car will be running more than 15 minutes or so.

As noted, I do eat at the same restaurant and they know me and my "crazy" car. I've found that chinese places tend to burn the oil (I think, maybe cooking in a wok?). Japanese is better - probably just frying tempura. Some place that does lots of french fries would be best, but not BK or Macs, since they have recycling contracts and get paid for their oil. The smaller places must pay to have it hauled off.

F