Original Classic Engine Treatment with Cerflon, Ceramic Protection Against Friction and Heat, 32 fl. oz, 1 Pack

I first used Slick 50 in the late 80s when it debuted and things change, right, but the description says "Original Formula" so I'm hoping that's not just sales hypeOne thing I noticed immediately is that the 80s formula's instruction was to drive at least 50 miles after adding this to fresh oil (to allow it to circulate through and adhere to the lifters etc) and it was a "once and done" additive... but the instruction on THIS modern "original formula" didn't say anything about driving ANY distance.. AND it's recommended to add once a year.. so I'm wondering if the manufacturer realized a "once and done" formula is bad for sales? which would logically mean it's not actually the original formula, wouldn't it?In any case, I *will* say that just as I was aiming for, it stopped the lifter's tapping noise that we old-car owners experience when warming up the car (that a simple oil change doesn't fix) which makes me happy, and I'm hoping that just like in the 80s that my engine will keep on running smoothly even when the oil's a little low ((in the 80s after driving it the recommended 50 miles, my bf checked the oil and it was bone dry!!! but the engine was running smoothly-- neither of us knew why the oil disappeared but I never had any problems for the next 6 years I owned the car))So... as far as needing to add it again in a year.. only time will tell

Even when I was in my "Twenties", 55 years ago, Slick-50 was around 1969 to about 1979, this product was WELL known in the Automotive Repair World !!! Slick 50 was developed by an "Automotive Wizard" I think in the1950's, Hence the Name !!! I think ?? The Engine oils "Waaaaaay" back then were just "Plain-Jane" oil(s) Not even High "Detergent Oils" at first, these were meant to keep the (INSIDE) of your engine "Clean" !!! Way back then for those "Monster" high-cubic inch displacement engines that the Car Makers pushed on the Markets, since they were in "Cahoots" with the Oil Companies !!! Also, Oil changes were Kind of "Neglected by the Average Owner (Not All), Maybe a "Religious" Once A Year Oil Change !!! No such things like "Jiify-Lube" or "Grease-Monkey", etc. etc. These days as engines came down in size (CID) starting with the influx of "Foreign Cars, European and Asian Vehicles, almost all of these Cars and Small Trucks had much smaller engines, "BUT" More of a "Demand" or "Burden" on them even though the "Engineering" !!! and the "Technology" and the Precise Manufacturing Tolerances became "Vastly", "Vastly" Improved !!! Many with 4 cylinders or even (three) cylinders !!! These also had smaller oil capacity engines (Usually) and sometimes less than 4 Quarts would be enough for an oil change (With Filter) !! Using ONE quart of Slick-50 was quite a Great, Great, thing especially if you did the Job yourself or just had the oil change "Place" add" it for you !! I Believe that this Product does make a difference and I use it in my Mercedes E-350 V-6 every oil change which is generally about 4,000 miles or so. Mercedes's recommendation is, 13,000 miles !!! NO, NO, NO !!!that's a little bit too many miles for me, maybe only once every two years, which is too long for me!!! I could "Bore" all of You and GO ON and ON, but that's enough for now !!! Thank You Amazon and Your Suppliers for Great Products, Great Prices and Great Shipping Always !!! (P. S.) My usage of Slick-50, Is to "Squeeeeeeze" a little more "Miles-Per-Gallon" out of My Trusty "BENZ" !!!!

Good stuff. Use it all the time.

When I was a young adult, I always drove $100 beaters! A trick a my dad taught before I could even drive was, every couple oil changes, ALWAYS put a quart of Slick 50 in! Just in case! It bonds to the engine and creates a protective coat that lasts a long time! Even if you're leaking oil! Now I'm driving a Saturn Ion with 213,000 miles on it. Before I put the slick 50 in it I was getting about 18 miles to the gallon local. Since I put it in I'm getting about 23 to 25 miles a gallon local. With that high a mileage I'm changing my oil religiously every 3,000 miles. So, off setting for the cost of the Slick 50, it's definitely not saving me any money on gas. But it's CLEARLY reducing the friction in my engine! Thereby extending it's life! Which, until I'm ready to buy a new car, is worth FAR MORE than how much it costs for me to add one court of Slick 50 every 3,000 miles!! What it's saving me on gas is just a bonus!

works good

Bought for my son and he used it so i guess it was fine, he didnt say anything .

Good product

good used it for years, price good have got it shipped on time.