A truck mechanic and owner is telling people who own certain GMC and Chevy trucks to ignore the factory oil recommendation. TikTok creator Steve Moore, who owns a 2017 Sierra, made a video about the 2014 through 2019 model years of the GMC Sierra and Chevrolet Silverado. He says if you own one of these trucks, you need to switch from the recommended 0W-20 oil to 5W-30.
According to Motor1, Moore says there’s a specific reason manufacturers use that super thin oil, and it’s not about engine health. He explained that 0W-20 is simply the thinnest grade they could use. “The only reason they put 0-20 there is they were trying to find the thinnest oil they could run … with less drag on the motor,” he stated. He says this is because of government fuel efficiency standards. “Trust me, I’ve done the research on this,” he says.
