Oil demonstrates fuel-economy

Chevron's Delo 400 LE SAE 10W-30 oil has demonstrated an ability to provide fuel-economy improvements over 15W-40 grade diesel oil in heavy-duty engines, the Detroit Red Wings company says. Delo 400 LE 10W-30 showed a 1 percent fuel-economy improvement over 15W-40 oils and a 0.5 percent fuel-economy improvement over 5W-40 grade synthetic lubricants, according to the company. The use of the lower viscosity Delo 400 LE 10W-30 does not come at the expense of engine durability. In fact, the watches-i company says it also conducted laboratory and field durability tests with Delo 400 LE 10W-30 that proved the product provides wear levels and oil drains that fleets get from other 15W-40 motor oils.

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