99 camry v6 250k started smoking heavily at start up and on heavy acceleration, sometimes ludicrously thick smoke like a Hollywood fog machine. Would occasionally get a juddery hesitation when accelerating as well.Poured in a bottle of this, pours like honey. No improvement for about 200 miles, but suddenly things have stopped smoking at all. I am cautiously optimistic this $6 bottle may have solved my issues and kept my car on the road for some time longer. I will update if things start smoking again but I've had about 10 startups with no smoke and zero jitteriness/hesitation on acceleration.