STP High Mileage Oil Treatment + Stop Leak - 15 FL OZ

My 2011 Silverado with 240,000 on it has been a very dependable vehicle. One month in and little to no oil loss. I was adding a quart every 10 days so I’m pleased. No side effects are apparent to this looks like a winner. I will update over the next three months and advise.

Helps reduce oil consumption in older engines

This stuff worked really well, it's slowed down the leak a lot

Not sure if this will help extend the life of the engine. But if it does what it says it does then hopefully it will .The one slight comment I have to make, is that it's very thick, which makes it difficult to pour it out through a funnel and into the engine. I actually worried if this might even fill up many of those small passageways in the engine and actually cause oil starvation until it's fully mixed in .I ended up pouring it in small amounts, and then adding engine oil into the bottle and giving it all a good shake. Did this 5 or 6 times until the bottle could be emptied easily.The engine seems to misfire slightly on starting now, which it didn't do before I put this stuff in. But of course that could be just coincidence.

Good solid product STP is one of the longest standing makers of all additives unlike some of the newer competitors who just stick their name on the side of a race car and claim their product is good

Me ayudó a reducir ruidos y pequeñas fugas en el motor.Fácil de usar y compatible con aceite convencional o sintético.Buena opción para prolongar la vida del motor en vehículos con muchos kilómetros.

Nice product fast shipping good price

So my car is a `96 make & model, it was running well, and then after using this in the oil, some time later my car broke down with a strong smell coming from it. It turned out that the oil distributor had actually corroded at the seal and started leaking, when this is supposed to seal leaks in the system. My mechanic ended up having to install a kind of system bypass, because the supplier could not provide a replacement oil system and seal. It ended up costing about a grand for the repairs and cleanup.I bought this to take better care of my car and lubricate it better, but the product seemed to have actually damaged my car to the point that it needed serious repairs and modifications. It should have left it running better than ever, but instead it caused a serious breakdown, and it was by sheer luck that I was able to get it started and leave it with the mechanic. It might work better with your car, but I think given the chain of events, and the amount of time that it had to prevent exactly the problem that occurred, it is fair to say that you might do better taking it for an oil change and getting the additive put in by a professional.