I just bought an '82 VW Rabbit diesel, 1.6l engine. Runs great and in really great condition. I am concerned about running B-100. I understand the IP has a rubber o-ring/seal that could fail. So, I'm going to go two-tank like I've done with my F-250 for almost 250,000 miles.
The VW does not have a lift pump. Rather, the injection pump has a rotary vane pump in it that pulls the fuel from the tank and through the fuel filter. What about adding a low pressure pump to get it through the filter and to the engine, no more than 4psi. Seems this would be good for running heated WVO or a blend.
2002 F-250, 7.3l on WVO since '04
'82 VW Rabbit diesel 1.6l na
'83 GMC 6.2l Class C RV
'85 F-350, 6.9l flat bed
'85 E-350, 6.9l cube van
2 Mercedes 300SD's
3 Chinese Changfa-style diesel generators- 12kw, 8kw & 7.5kw
Mitsubishi 3 cyl diesel generator/light tower
Kubota 2 cyl. diesel, water cooled air compressor
Onan 12.5kw air-cooled diesel genset
I run my company entirely on renewable energy including electricity from generators running on biofuels.