I've read many times that the 6.9/7.3 IDI are very good engines to run WVO...

On the other hand, it's apparently not recommended for the DD 6.2/6.5.

Many of the GM diesel guys tell me I'll destroy my IP pretty quickly (I have about 4,000 miles on WVO on that truck, and we logged some 20,000+ on a pre-TDI VW before that, no problems)... because there's no way to prevent some of the remaining water to get past my 600-series Racor filter into that Stanadyne IP.

I'm just curious to get you guys' opinion... this is actually a question that can be asked to both Ford diesel guys (pre-PS IDI) and GM diesel guys (pre-Duramax), and the answer should be the exact same!