Had the oil changed on my Saturn at an ancient Chevy dealership. Their bulk oil is GM Goodwrench 5w30, which I assume is made by Mobil since the oil change sticker they installed says Mobil on it and I found a Mobil powerpoint describing the Goodwrench bulk oil program.
So, which Mobil oil is the Goodwrench oil equivalent to? Clean 5000?
So, which Mobil oil is the Goodwrench oil equivalent to? Clean 5000?