congrats on the conversion… becareful when “collecting” oil they can nail ya pretty good if you get caught.
Veggie will result in a low MPG since its not as powerful. But the upside it doesn’t run as rough it should be much smoother. The smell is also greatly improved. You can also mix veggie and diesel and switch from tank to tank whenever you want to.
The only reason one would run diesel is to heat up the veggie oil make it less viscious.
Jack one thing you will have to look out for is the filters… they collect a lot of water… so stock up on about 5-10 of them at a time. And be extremely conscious of any kind of water going in… they filters plug up quick.
What kind of gauges do you have to monitor your system? Is it manual or automatic?