Will thicker oil stop white smoke?

Thicker oil may reduce white smoke in some cases, particularly if the smoke is caused by oil burning in the engine due to worn piston rings or valve seals. The increased viscosity can help create a better seal, potentially minimizing oil leakage into the combustion chamber. However, it's essential to diagnose the underlying cause of the white smoke, as it could also indicate coolant entering the combustion chamber, which thick oil won't resolve. If the problem persists, consulting a mechanic is advisable.