I just installed a GreaseCar kit in my '00 and was wondering if anyone was running a DP Tuner with WVO. I'm told there will be noticeable power differences when running on WVO, so I'm curious if those losses are consistent with the power gained by the programs I have.

While I'm at it, I'm also curious if anyone has had any problems with leaks in their GreaseCar valves? I bought my kit used off eBay and started by installing everything so I could drive the truck, but not ready to run oil yet. I noticed I had diesel fuel leaking out of the oil return port. I'm told now, after several other, unrelated electrical issues have been resolved that I am probably pulling air in from the oil inlet (when running on diesel) which causes me fuel starvation issues including stuttering and loss of power. I didn't buy my kit from GreaseCar so their policy keeps me from getting much support without paying for it. Anyone know if they have a valve rebuild kit?

 

I use the DP Tuner with Bio and it works just fine. Don't know about WVO.