Sea Foam High Mileage Motor Treatment Gas & Oil Additive, HM16, 16 oz

I utilized this additive in my engine oil 200 miles before my scheduled oil change. This is on a Toyota tundra with a 5.7 L V8. I added the correct amount to the engine oil and drove 200 highway miles and then scheduled my oil change with a proper supplies. When I pulled out the Oil filter and took a closer look I saw an awful lot of black specs. It may be hard to tell in the pictures that I have attached but upon closer expections, you will see little black dots. When I would grab those and rub them between my fingers they would smear , like carbon deposits that had been removed. There were no metallic flakes or hard bits that I felt. After using this product, I noticed that the vehicle idles smoother, accelerates and runs smoother, and I do believe that it helped clean out some carbon buildup on my high mileage truck. I’ve been a believer of seafoam products in the gas and I am now a believer of seafoam products in the oil. If you follow the manufacturers directions, I would assume that you would be happy with the results as well.

I have been using this product for years.It has never disappointed and has always given me better gas mileage than e.P.A estimates

I use this on all my vehicles because it works. I also put a little in the gas for my 2-stroke tools, and they keep on running. My truck has 235,000 miles on it and runs like a champ.

It works!! But prepare to change your fuel pump/filter after pouring in!!

Started using Seafoam about a year ago when my 2016 Toyota Camry was burning oil. I was using about a quart of oil every 1200 miles. I started putting 5 oz in the crankcase and the remainder of the bottle in the gas tank 200 miles before every 5000 mile oil change. After two treatments, the oil consumption rate is about a quart every 6000 plus miles. Reduced engine noise and improved performance. The Camry is going on 340,000 miles with all original parts. It works for me.

Added to my oil, as directed at 1oz/qt, to clean up sticky variable valve timing solenoid oil control valve issues in my 23 year old Pathfinder. Still running great with mostly all original engine control parts. Just needed a bit of internal engine cleaning needed to remove years of residue from those small oil passages. Saved me the cost of replacing the VVT solenoids.

My mechanic, who knows much more than me, told me to use this because I have 156,000 miles on a large Triton V-8. He also told me mix it with high test gas. That's because of the size of my engine. If you have a small engine no need for high test. But you do have a need for this additive. My mileage has increased by a few per gallon. That is great given the price of gas. Most of all I noticed an increase in my power when I accelerate my engine is no longer sluggish. Try it. If you don't notice a difference I would surprised.

works great I use once every other month on my oddessy and it has not even needed a tune up so far. It has 140000 miles on it. purs like a kitten.

Nothing work

I heard it was the product to use to clean the inners of my car. It seems like it does the job.

Excellent results

Adding into an almost empty diesel tank and then filling up seems to make a real difference to engine performance - in my opinion

I poured half in my oil tank and half into my fuel tank and it made my engine run smoother