I find the XUD lump to be pretty efficient at speeds up to 80 mph..
I do 150 miles every day in my ph1, so have quite a lot of evidence to draw this conclusion from..
Brimming the tank with veg will always yield 600 miles, and I've had up to 650 before.. This equates to 45 - 48 mpg.. And that's averaging 75 mph +.
Also bear in mind that veg oil itself has around a 5% lower calorific value than pump diesel.
I agree with Dave, I run my tires at 45 psi all round and I do believe this makes a difference.
Maybe one week I'll limit myself to tailgating lorries and see if I can improve on my tank range..
Edit: Another weird tip; when doing long distance, not wearing a shoe on your right foot helps with using exactly the right amount of throttle
I do 150 miles every day in my ph1, so have quite a lot of evidence to draw this conclusion from..
Brimming the tank with veg will always yield 600 miles, and I've had up to 650 before.. This equates to 45 - 48 mpg.. And that's averaging 75 mph +.
Also bear in mind that veg oil itself has around a 5% lower calorific value than pump diesel.
I agree with Dave, I run my tires at 45 psi all round and I do believe this makes a difference.
Maybe one week I'll limit myself to tailgating lorries and see if I can improve on my tank range..
Edit: Another weird tip; when doing long distance, not wearing a shoe on your right foot helps with using exactly the right amount of throttle

Captain Standard