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If Tom's just re badge the Blitz throttle controller and sell it for something like $200 more then would it not be a fair assumption they just empty a brand name oil into their own can.
I don't think Tom's makes any oil... Tom's oils are more likely packaged by other oil manufacturer. Also check out HKS oils if you want to be JDM-hardcore. HKS has full lines of fluids; from M/T to A/T fluids, coolant antifreeze to brake fluids and racing fluids...
I guess it would take $$,$$$,$$$ to start an oil company; a racing-parts-house just can't afford to produce its own oil.
Just like Toyota put components together into cars but Toyota does not make tires, spark plugs, brake pads.... and so on.