Well I'm going to whip up tomorrow and buy the cheapest oil can I cand find (as brake fluid will trash the seals no doubt)
https://youtu.be/4-XjNLm7358
This is brilliant! Just use a simple oil can and fill it from the bottom up.
Oh I have also figured out why Beutey has said so many times "you must put the LPG converter in series with the heater... not parallel".... I can't even get coolant flow the damn thing to bleed it when its in parallel. I'm pretty sure the heater core is always hot too (ie: the mixer flap turns the heater off, not a tap in the coolant line). I will whip up tomorrow and grab some hose fittings to run the sucker parallel.
seeya,
Shane L.