Hot Shot's SecretHSSFR332Z FR3 Friction Reducer 32 Fluid Ounce

I like the stuff I can see the difference in gas mileage and my engine starts easier and runs smoother

I'm a former auto mechanic from the days before computers ruled the automobile, so I mainly do not use oil additives. However, my LS2 has had more noticeable lifter chatter over the last couple years. I tried Seafoam in the crankcase as directed, drove it 100 miles and changed the oil. It made zero difference. After researching loud lifter knock for my other car (2006 300 C), I stumbled across this product but also Stiction Eliminator (bought that too).I drained 20oz of oil from my LS2 and then added 20oz of FR3. I didn't have to put on more than 20 miles before I took note of how quite the lifter chatter is, full honesty. I gained roughly 5lbs of oil pressure when data logging and the engine is much more responsive. Directions state to change the oil first but since I'm real close to changing it again (with AMS Oil), I feel it's worth more to run it the current oil and then flush everything out for a fresh change.For the 300 C (5.7 Hemispherical), the knock was loud, had it at a reputable engine shop and they said it needs a new engine, for the low low price of $8,700). Had it towed back home and it sat for 3 weeks. Added Friction Eliminator to the oil and ran it for 20 minutes. The noise is almost completely gone now.I definitely recommend both products!

This product definitely works ,I have a 2004 Chevy Silverado with a 5.3 V8 lifter tick on start but goes away.I recently did a 1400 mile trip Florida from NC ,My first fill-up truck indicated 338miles normal , during the trip I was thinking I he feel up mileage so get worse because I was really laying the hammer down 75 to 80 mph my mpg indicator normally stay on 13mpg but during the trip it was on up to 14.7.My 2nd fill-up was 358miles per tank 3rd fill said 373 4th fill said 379 my last fill said 381 so something inthis additive is actually reducing friction ,and my lifter tick on startup is almost gone so this additive is worth the price

This made a noticable differnce in my '93 Cummins. The engine runs smoother and sounds a little less clattery compared to whatever oil the previous owner had in it. I've been using it since the first oil change I did after I got the truck, so I can't comment on whether or not it increases fuel economy, but I use 18oz of FR3 every oil change and 2-3 oz of EDT every fill-up, and my truck gets 19-22 MPG consistently. '93 Dodge D250 Club Cab Cummins/Auto 3.54 gears. Stock size all-terrains, FFS Leveling kit & a 2" block in the back. I'd say that's pretty respectable for a 31 year old 3/4 ton truck. The oil is still honey colored on the dip stick when I change it every 5,000 miles.

Both of my car and truck seam to run smoothly and better gas mileage. Took a few times driving them to notice the difference. I am satisfied.

I bought a used 2021 GMC Acadia AT4 with a V6 and 40k miles. Just useing the mpg monitor on the display it showed an average of 19mpg. While my 2018 V6 SLT Acadia with 70k mikes gets 22mpg. Obviously an AWD vehicle will get less mpg, but I thought 19mpg wasn't good enough. I installed a bottle of the FR3 and a K&N air filter. My mpg increased from 19 to 21. Are you saving enough gas to offset the cost of the additive between oil changes? 5000 miles divided by 19 is 263 gallons. Divided by 21 is 238 gallons. That's a 25 gallon savings per oil change. Gas right now is $3.30 so that's a savings of $82.50 per oil change, so for me it's definitely worth it. However, I had also changed to a K&N filter which may account for some of the fuel savings. The K&N filter was $69, minus the difference of an OEM for $15 that makes the K&N $54 and it will last the life of the vehicle. Even with the expense of both I still saved $$$$ over the next oil change and beyond. Yes, you do have to add the FR3 at each oil change. They say the benefits improve each time you add it.

Help starting in 20 degree weatherAlso helps keep the heat down in the summertime traffic.

I was starting to noctice some lifter noise, i put 8 oz of this in the engine, and wihtin 100 miles of driving the lifter noise was totally gone