Why wouldn’t you?
It can be difficult for fleets to measure fuel economy gains in the 0.5% to 1.5% range. And that is the range they can expect to see if they switch from 15W-40 engine lubricant to low-viscosity 5W/10W-30 lubricants.
This was one of the findings of the Confidence Report on Low-Viscosity Engine Lubricants that we recently released. Low-viscosity lubricants serve to reduce engine mechanical losses; that’s how they save fuel.
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