27万㎞走行のデリカに過走行用オイルで静かになるか検証

くるま博士 コグちゃんねる

くるま博士 コグちゃんねる

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Comparison of DL-1 Oil for Clean Diesel Vehicles
We compared the noise level of 10W-40 oil, designed for high-mileage vehicles, in a Delica with 270,000 km on the odometer, with 5W-30 oil, to see how much quieter it became.
The idling noise of the Delica decreased by about 10%.
We also explained the cause of the idling noise in the Delica.