It is particularly beneficial for engines that exhibit minor oil consumption, slight external leaks, or increased valve train noise. High mileage oil exists for one primary reason: to address the specific needs of engines that have accumulated significant distance.
High Mileage Oil Condition Seals Reduce Noise and Extend Engine Life
Regular oil changes are even more critical, as contaminants can accelerate wear. High mileage oil contains seal swell agents that interact with the elastomeric materials, restoring a tighter fit and minimizing these issues without causing damage.
These products feature higher levels of anti-wear additives, such as zinc dialkyldithiophosphate (ZDDP), which protects the flat tappet camshafts and lifters common in many older engines. Key Additives and Their Role The difference between conventional and high mileage formulations lies in the additive package.
High Mileage Oil Condition Seals Reduce Noise
This specialized formulation is engineered to condition seals, reduce noise, and maintain protection where it is needed most, ensuring older engines continue to perform reliably. Pistons and cylinders develop microscopic scoring, valve guides wear, and seals lose their elasticity.
More About High mileage oil for cars
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