Parked right next to the Lucas oil stabilizer is Fram's new oil additive. I picked up a bottle and shook it. It seems quite thin for an oil additive, much, much thinner than the Lucas additive, and even thinner than the Lucas synthetic oil additive. I'd go so far as to say that judging by bottle shaking only, it seems to be about the same thickness as a 20w50 oil. It's priced the same as the conventional Lucas additive. I wonder how well this stuff could possibly protect an engine.