We were doing the dynamic IP timing on my van.

With Diesel: 8.4 btdc.
the engine fired up nicely - and there was no smoke at no time while driving.
Air filter is good.
Return-line is good.

Today I have a 2-tank system and I am using 2 heat exchanger. One at a second filterhead and another one next to the WVO tank - after the strainer.

Now, since I use WVO-only in one tank, I am facing a hard start at any time, even without WVO in the fuel line.
It starts hard if the engine is cold or if the engine is hot.
When driving with OverDrive at low RPMs at an uphill (w/o pulling and van empty), then the van gets a fog-machine with WVO.
Furthermore the van stinks like a Weber grill and smokes like it while idling in the yard.

I am now thinking if the IP timing should be changed again.
What is your IP-timing when using WVO?


Is anyone using WMO?
WMO should have a lower viscosity but you should also need a different IP-timing.
What is yours?