A couple of considerations. First --- until the engine is warm you would not be generating any heat for the fuel and most folks consider cold WVO to be less than good for your engine. Secondly ---- and I'm not at all sure of this , but I've read that copper fuel lines eventually react with the acidity of the WVO to form crud. Some research on this matter might be worthwhile.

__________________
John Schroader
bio burnin' 83 300D, '83 300 SD, '79 240D
"I've never met a man who was good at making excuses who was good at anything else" Ben Franklin
"You cannot permanently help a man by doing for him what he could and should do for himself" Abraham Lincoln