My
. Please, this is not intended to offend anyone. Just sharing my perspective. If you want to use a particular product, or choose not to, please realize that is always your choice. I am just sharing my thought process on these types of things.
To my way of thinking, anecdotes and opinions have their place. People have reported near miracles using Seafoam, and complete destruction. Some report no discernible difference from the before and after. I always look to see meaningful, structured, scientifically based testing to back up any products claims. When I see such a range of experiences for a product, I rely even more on this type of testing.
My concern with Seafoam is that I have yet to find this rigorous type of testing for this product. In addition, when I see statements like the following in their technical section, I seriously begin to question what engineering science is behind the product.
"Sea Foam Motor Treatment is petroleum based, NOT A CHEMICAL!"
Sounds good, but what does it mean? Diesel and Gasoline are chemical "concoctions". Motor oil is a chemical concoction. So, my next step is to look at the MSDS, located here:
http://www.seafoamsales.com/271-msdsseafoamen.html
It shows three chemicals:
Pale Oil - Based on the CAS number it is considered Paraffin oil (essentially diesel)
Naptha - Also known as Coleman or Camp fuel
IPA - Isopropyl alcohol
Based on this, Seafoam appears to be a chemical concoction of solvents/fuels blended into a diesel carrier base. The companies claim is that it is "petroleum based", which appears to be true. But it also contains IPA, also known as 'wood alcohol'.
So, based on this, I see SeaFoam as a solvent, that because of IPA's ability to form an azeotrope with water has some water "absorbing" properties.
Please use accordingly.
(BTW, all of the research conducted for this post took about 10 minutes).
Now I'd like to share how I clean the crankcase of an engine. I have real experience with this method, and it is as safe as an oil change. Because that is exactly what I do.
I use synthetic motor oils exclusively in my engines, as long as they meet the specifications and certifications the engine manufacturer stipulates. Rotella T6 in my diesels.
The synthetic oils I choose are proven to slowly dissolve varnish and sludge build up from "dino" oils. I have inspected inside the crankcase of several engines before and after use. I can attest to the fact that they do clean up. This is through use of a borescope AND before and after oil pan removal. I unfortunately do not have any before/after pictures. I fully realize that to you, this is anecdotal, so please treat accordingly.
Best regards ...