As like every Lucas product that I have ever used it performs above my expectations. I use full synthetic oil and was noticing my oil pressure dropping as I would accumulate around 3,000 miles and I like to go 5,000 miles between changes. I started using the oil treatment and now the pressure stays up as it should. 279,000 miles on the engine and going strong.

Raised my oil pressure 15lbs and quieted my 219k mile engine. My engine runs very smooth with this product. I'm very pleased with this product. I highly recommend it for anyone with a high mileage engine and or worn engine, it really works well

After putting Lucas Oil High Mileage Stabilizer through its paces in my aging 1999 Toyota Camry LE with over 189k miles, I'm ready to share my thoughts. This product claims to revitalize tired engines, and I was eager to see if it lived up to the hype. Here's my breakdown:Value for Money:Lucas Oil High Mileage Stabilizer isn't the cheapest oil additive out there. But, if it delivers on its promises, the cost is totally justifiable. Considering the potential to extend engine life and reduce costly repairs, it could be a smart investment in the long run.Build Quality:The stabilizer comes in a sturdy plastic bottle with a convenient pour spout. The product itself has a thick, viscous consistency, which suggests a robust formulation.Oil Quality:Lucas Oil High Mileage Stabilizer is a 100% petroleum-based product designed to blend with your existing engine oil. It's formulated to enhance the oil's lubricating properties, reduce friction, and protect against wear. I noticed a slight darkening of my oil after adding the stabilizer, which could indicate it's cleaning internal engine components.Leakage:One of the key claims of this product is to help reduce oil leaks. While I didn't have any major leaks to begin with, I did notice a slight reduction in minor seepage around the valve cover gasket after adding the stabilizer. It seems to have helped condition and swell the seals, just like it's supposed to.Lubrication:The most noticeable improvement was in engine smoothness. My Camry's engine seemed to run quieter and with less vibration after adding the stabilizer. This suggests improved lubrication and reduced friction. I also observed a slight improvement in throttle response, which could be attributed to better lubrication.Speed:While I didn't experience a dramatic increase in horsepower or top speed, the improved throttle response did make the car feel a bit more peppy. It's not going to turn your Camry into a race car, but the enhanced lubrication and smoother operation can make for a more enjoyable driving experience.Overall:Lucas Oil High Mileage Stabilizer appears to be a solid product that can offer noticeable benefits to high-mileage vehicles. It improved my Camry's engine smoothness, reduced minor leaks, and seemed to enhance lubrication. While the price is a bit higher than some other additives, the potential benefits make it worth considering for those looking to extend the life of their aging engines.Pros: * Noticeably smoother engine operation * Potential to reduce minor oil leaks * Enhances lubrication and reduces friction * May help extend engine lifeCons: * Relatively expensive compared to some other additives * Results may vary depending on the condition of the engineRating: 4.5 out of 5 starsRecommendation:I would recommend Lucas Oil High Mileage Stabilizer to anyone with a high-mileage vehicle looking to improve engine performance, reduce leaks, and potentially extend engine life. However, it's important to remember that this product is not a magic bullet. It's best used as part of a comprehensive maintenance plan that includes regular oil changes and other preventative measures.

Having big trucks i go through this alot. This is the best price i could find. The oil quality is good. It is easy to use.

I use this in my Chevrolet Suburban with 280k miles. Half the price of Walmart.

I wanted an oil additive, somethingsticky to help on engine wear on start up.I like the Lucas brand of additives.

I have used many Lucas products over the years and consider them to be high quality and use this in every oil change on every vehicle that I own. I have a truck that's nearing 250,000 Mi and I have used Lucas oil supplement For many many years the engine has never been apart.

I've been putting LUCAS oil in my 1998 Ford F-250 (179000 mile) since i bought it in 2001. I put it in my 2014 Mazda CX-5 (140000 miles) for its first oil change and to this day. I even put it in my 2017 Smart 453 (39000 miles) It's a premium oil additive that truly works in any engine of any manufacturer.

My 2010 Peugeot 3008 1.6

This is what I vas expect , good price!

This additive has made my engine run very quiet. There are times I thought the engine was off during idle.

Works as it is advertised.

My Hyundai Sonata now have 210,000 kms. so it's about time to mix a few ml. of this additive. Does not contribute to increase the performance of the car but to keep the engine in top condition due to its age and mileage.