Well written.....Placebos get excellent reviews all the time.
Seafoam is just pale oil with a splash of alcohol and light naphtha. It has a KV100 of 2.6 cSt. For reference, a 0W-8 engine oil is ~5.5 cSt so you're diluting the viscosity of the oil significantly. It contains no additives thus the additives in the oil are diluted. It has a flash point of ~140°F. The alcohol and light naphtha are supposed to be the solvents but both are largely non-polar solvents, and thus they cannot dissolve organic polar compounds (like sludge). They also boil at temperatures below operating temp so they're evaporated the first time they see high heat around the rings, much less survive there long enough to clean anything. It causes the oil to oxidize rapidly, turning it black and making you think it's doing something. It's a gimmick. The only thing it does well is separate you from your money, and the same goes for most all oil supplements.
Seafoam was made and invented in a garage in Hopkins Minnesota. They are still in the Minneapolis area. I have used it many times, but I myself think it so old school as far as chemistry, I no longer use it. 20 years ago I think it has been. There are far far better automotive products that work better and have advanced chemical technology to spend my money on. Comparing Seafoam to any large automotive chemical company..........Seafoam loses everytime in my book. We have far far better products then this now a days, Seafoam is a relic of time past.For a long time there has been a solution to cleaning your engine and that is SeaFoam. Per the company SeaFoam is 100% safe when used as directed. You dont need specialized Valvoline oil or Mobil Advanced Clean. All you need is a quick visit to Home Depot to grab SeaFoam and a measuring cup.
Im sure the Valvoline Restore and Protect works but Im also sure SeaFoam works as well.
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Only in the coarsest possible terms. Before seafoan, the engine would hesistate off idle. After, it would not.Did you quantify the improvement somehow?
If you want to dissolve sludge you need a highly polar solvent. Like, say, hexanone/MBK. The smell of which was very familiar when I whiffed one of my favorite now-discontinued products.Placebos get excellent reviews all the time.
Seafoam is just pale oil with a splash of alcohol and light naphtha. It has a KV100 of 2.6 cSt. For reference, a 0W-8 engine oil is ~5.5 cSt so you're diluting the viscosity of the oil significantly. It contains no additives thus the additives in the oil are diluted. It has a flash point of ~140°F. The alcohol and light naphtha are supposed to be the solvents but both are largely non-polar solvents, and thus they cannot dissolve organic polar compounds (like sludge). They also boil at temperatures below operating temp so they're evaporated the first time they see high heat around the rings, much less survive there long enough to clean anything. It causes the oil to oxidize rapidly, turning it black and making you think it's doing something. It's a gimmick. The only thing it does well is separate you from your money, and the same goes for most all oil supplements.
I did the Seafoam thing once long long ago. Don't remember the vehicle or result but the huge smoke bomb was impressive and worth the price of the can. Everyone should do it once, in an older car maybe.