Slick 50

[WileyG]

Anybody here use any crankcase additives for engine heat reduction? The reason I ask is due to the single instance that I was involved in with extreme outdoor temps....

In the summer of 1994 I was working in the Mojave Desert in Arizona. We had a John Deere 850 cable plow that was running at the very edge of overheating. Actual outdoor temps were well above 100 degrees every day, approaching 120. I ended up draining a gallon of engine oil and adding a gallon of Slick 50. The engine temp went down at least 20 degrees under full load and even more when not loaded. I would not have believed it if I weren't right there to witness it.

 

[Gary Fowler]

I used it years ago once and it was supposed to give better fuel MPG. I didn't see any difference. Most all of the so called "enhancement additives" are just snake oil.
Any properly designed motor doesn't need any additional additives to work properly.

I remember the STP ad and how it reduced friction. Come to find out, it really just gummed up your engine block while doing no good at all in reducing friction. It sure spent a lot of money sponsoring race cars though. They sure didn't have any gum up problems since they completely rebuilt their engines after every race.

 

[WilliamBos]

Run a good full synthetic oil, avoid snake oil like Slick 50.

 

[big bubba]

if old school slick 50 were as revolutionary as the OP suggests (or any of the other so called enhanced engine oil additives), then why wouldn't oil or auto manufacturers currently be using them in their own applications and formulas?

 

[sd455dan]

Put slick 50 in a 1967 GTO after breaking in the rebuilt original 400 engine for 2000 miles, engine temp immediately jumped 15-20 degrees.

I drained the new oil mix out and switched back to regular non synthetic 10w-40 without the Slick 50 in about 2 weeks of driving the temp settled back to normal.
Never again...



I have had luck reducing coolant temps in Muscle cars by adding a water wetter to the coolant and also adding an external oil cooler though.


ps. did find a use for STP but not in an engine, have added it to 2 different rear axles After being told about it by a friend who had a noisy plow truck axle.

1 was noisy and 1 ran really warm while towing

it quieted down the noisy rear axle and the jeeps rear axle does run cooler. But YMMV

 

[WileyG]

if old school slick 50 were as revolutionary as the OP suggests (or any of the other so called enhanced engine oil additives), then why wouldn't oil or auto manufacturers currently be using them in their own applications and formulas?

I never said it was revolutionary. I just posted a personal, one time experience.

 

[TomSeller]

I never said it was revolutionary. I just posted a personal, one time experience.

I am sure it did just as you described in your case. What was the oil being used, do you recall?

 

[WileyG]

I am sure it did just as you described in your case. What was the oil being used, do you recall?

Pretty sure we ran Rotella T back then but I couldn't say what viscosity. That was the absolute hottest environment that I ever worked in and I'm glad I got out of there when I did.

 

[vsteel]

I know years ago there was an issue with slick 50 because it contained Teflon. While that sounds good, when it is under pressure the molecular chains would bind together and cause issues because it would turn into sludge in high pressure situations. There were cases of blocked oil filters. I didn't even know it was still around.

 

[Gary Fowler]

I know years ago there was an issue with slick 50 because it contained Teflon. While that sounds good, when it is under pressure the molecular chains would bind together and cause issues because it would turn into sludge in high pressure situations. There were cases of blocked oil filters. I didn't even know it was still around.

Havent seen it(slick 50 or STP lately but then again I don't look in auto supply houses for my oil and filter needs. They may still carry it. I only buy auto parts from auto supply places, I get my oil and filters at Wally World at substantial savings. My hydraulic oil I get from farm and ranch supply houses.