I'm like you, I don't care what people say about Slick 50, it works great. The only thing I don't like about it is the PTFE (teflon) can make your seals dry out and shrink, causing leaks. When it first came out, my dad was the QC manager at a local Ford Truck (big trucks) factory that rebuilt fleet vehicle motors, both gas and diesel. One day, he took a motor that had just passed inspection, added Slick 50 to the motor, ran it for a couple of hours, then drained the oil and the coolant, and ran the motor for over an hour at it's highest RPM. They took it back apart and inspected and found no damage to it at all. I'd say that's a darn good testament for it.
Here's another one. After he did that test, he bought a new 87 Chrysler Reliant K with the 2.5L 4 cyl motor. All he ever did to that car was change the oil every 5000 miles (Quaker State 10w30) and add a quart of Slick 50 every 50,000 miles. He never changed the transmission fluid, coolant, nothing else, unless a part needed to be replaced or repaired. He did change the plugs and wires on a regular basis too. We put over 700,000 (yes, you read it right- 700,000) miles on that car before he bought a different one. He loaned the K car to a friend for his wife to drive. He told them, be sure to check the oil and tranny fluid every week, it'll use a quart of oil a week (mostly leaks from the seals) and you'll have to add tranny fluid every couple of weeks too. (By this time, the car was 11-12 years old and it'd paid for itself several times over, so he didn't care about adding oil every week, still cheaper than buying another car
) Well, this guys dingle-berry wife just drove the car on and on, even after it started making "funny noises". When she finally killed it, it was just rolling over 750,000 miles.
Years later, I was a manager for Valvoline Instant Oil Change. Of course, when you bring your car into one of those places, there are many things that you "need" to have done, right? I used to think about that K car and wonder just what services that we sold were a load of malarky.... I ended up quitting because I hated selling people services that they might not actually need to have done, sure, it didn't hurt the vehicle to do them, but why let people waste money??
"The funny thing is after the replacement the guy that filled the oil did not tighten the oil filter and he blew the new engine up after only 25 miles or so."
ROFLMAO, ha ha, serves his right for being a butthead.
