Lubricant maker believes low viscosity FA-4 formulations will start to “take maintain” within the trucking market round 2019 or 2020. ExxonMobil is introducing three new Mobil Delvac 1-branded full-synthetic heavy-duty diesel engine oils that meet either the CK-Four or FA-4 specs developed by the American Petroleum Institute (API): Mobil Delvac 1 ESP 5W-30 provides up … Read more
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