The only statistical difference related to the B20 was that it lowered the oil viscosity between maintenance intervals in engines slightly more than the ultra-low sulfur diesel.

B20在数据上表现出的唯一差异在于，其在维护间隔期内的黏性下降程度略大于超低硫柴油。

youdao

The U.S. Department of energy says blends up to B20 are common, but it advises against using anything higher than B5 in a standard diesel engine.

FORBES: Veggie Oil Smells Better Than Diesel, But It's No Slam Dunk