Delo 400 LE 10W-30 showed a 1% fuel economy improvement over 15W-40 oils and a 0.5% fuel economy improvement over 5W-40 grade synthetic lubricants.

In an ongoing effort to reduce the environmental impact of its products, Volvo Penta has approved the use of hydro-treated vegetable oil (HVO) – neat or blended with conventional diesel – in ...