Delta4Embassy
Gold Member
Diesel vs. Biodiesel vs. Vegetable Oil Homegrown Fuels - Consumer Reports
"The Jetta ran well on vegetable oil. But you have to switch to diesel before you shut the engine down every time to purge impurities from the fuel system, which is a nuisance. And if you forget and leave the switch on after shutdown, the cooking oil tank will fill with diesel fuel.
When running on cooking oil, the tailpipe exuded a familiar fried-food scent.
B100 is a fully renewable fuel and provided similar fuel economy and performance to petroleum diesel, but it typically carries a hefty price premium. For now, there is no financial incentive to use B100. Also, it is unlikely that manufactures will warranty B100 in their engines, though most will cover up to B20.
If you have access to biodiesel, running a moderate biodiesel blend in your diesel engine may provide slightly better fuel economy and acceleration than conventional diesel, while costing about the same.
Used cooking oil is another fully renewable fuel, but it's a viable alternative only for those up to the challenge. Operating a grease car requires sacrificing trunk space to an auxiliary tank, arranging your own fuel sources, picking up, filtering, and storing the fuel, starting the fuel system with regular diesel after every time you drive, and cleansing the system before shutting down."
lots more at link including emissions comparisons.
"The Jetta ran well on vegetable oil. But you have to switch to diesel before you shut the engine down every time to purge impurities from the fuel system, which is a nuisance. And if you forget and leave the switch on after shutdown, the cooking oil tank will fill with diesel fuel.
When running on cooking oil, the tailpipe exuded a familiar fried-food scent.
B100 is a fully renewable fuel and provided similar fuel economy and performance to petroleum diesel, but it typically carries a hefty price premium. For now, there is no financial incentive to use B100. Also, it is unlikely that manufactures will warranty B100 in their engines, though most will cover up to B20.
If you have access to biodiesel, running a moderate biodiesel blend in your diesel engine may provide slightly better fuel economy and acceleration than conventional diesel, while costing about the same.
Used cooking oil is another fully renewable fuel, but it's a viable alternative only for those up to the challenge. Operating a grease car requires sacrificing trunk space to an auxiliary tank, arranging your own fuel sources, picking up, filtering, and storing the fuel, starting the fuel system with regular diesel after every time you drive, and cleansing the system before shutting down."
lots more at link including emissions comparisons.