"Does Cal even know cars?" Tommy wonders mostly to himself. No point in questioning it beyond that much though. Oil, though, that's harder to think about.

"Any chance you know the chemical formula for car sorts of oil? I could... I could spare a replication for that. I mean, one bottle's enough, right?"

No. It's not. Of course it's not. But if he knows it, he can give Billy the formula to make it for himself.