Many attempt to fix their hot running vehicle with a drop in promise, not knowing enough to care that it could be a leaking headgasket, plugged radiator causing an issue. Snake oil? More often than not.
As far as Slick50 mentioned I will give this actual testament fact. In another lifetime, years ago, I commuted in 100*+ heat. 200k mile Ford Tempo (remember those?)
blew an oilfilter when leaving work. Several miles later in my oblivious state I noticed it idleing a tad rough at a stop light. New filter add oil...Drove 50k more until a drunk driver decided to head on the car while it was parked.
Slick50 ???
I know the true Slick 50 story, and have the original formula that was used, it is the real stuff.
I met the man John Bishop who invented Slick 50 in the 1970’s a few years ago. Long story short, Petrolon, the company that used John Bishop’s patented formula and sold it under Slick 50 name, started screwing John Bishop. John Bishop sued and won. Petrolon (spelling?) could no longer use John Bishops formula in about 1983. Petrolon sold to Quaker State and they kept the Slick 50 name, but the formula was junk and resulted in lawsuits.
If you want the real stuff Xcelplus is the original John Bishop formula.
The Original Slick 50 (pre 1983 or so) had all kinds of tests done on it by different agencies such as the FAA and some universities, and was proven to reduce friction.
I belong to a MLM company Team National and TN used to sell John Bishops products under a different name than Xcelplus, (“Thermo fuse” something). John Bishop used to come to our conventions and I would always go see him. He had rod bearings from a racing engine that was treated with his formula and it clearly had a smooth, slick coating on it. He claimed it was 2 mils thick. Team National stopped selling his products for some reason and had the engine treatment on sale and I bought 3 cases of it, and wish I bought more, although this has and will last me for years.
I treated my Zero Turn Kawasaki engine 10 years ago and noticed it idled higher after the treatment. So I’d say it works.