Vegetable Oil SVO WVO waste cooking oil as biofuel

[Luckyr]

So I have a standard home made 2 tank veg system that I have been running successfully for almost 1 year now. The problem is that veg oil is getting extremely difficult to source lately. I was wondering if I can clean out my system, maybe run a tank or two of regular diesel through the veg system to "wash" it out and then start running motor/hydraulic oils in it. Any input would be much appreciated.

[SunWizard]

See Blending with used motor oil WMO and ATF since the same issues occur if you run it in a 2 tank rig.