Hot Shot's Secret Friction Reducer FR3 32oz. Synthetic Oil Additive Protects Engine & Improves Performance, Friction Modifier for Gas & Deisel Engines Increases Fuel Economy

This additive really works and I can tell a difference in my older engines which I use it in. Those engines are a 318 ci 5.2L V8 in my 1998 Dodge Ram 1500 SLT Laramie and a 225 ci 3.7L Slant 6 in my 1974 Dodge Dart Swinger. Engine performances are more efficient and run cooler because they don't have to work as hard as without the additive. At each oil change use 8 oz of the product along with the fresh Mobil Synthetic 10W30 oil. You will see a difference.

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!

Every 5000 miles at oil change

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

Feels like it improved.

A good product that improved the performance of my Toyota truck and Honda generator at an affordable 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.

Pays for itself in better fuel mileage, my brother who’s a small engine technician is a huge fan of it

Best product ever

I’m not sure if it works or not but I’m sure it did no harm lol, I’ll give it a 4 stars as it didn’t make my RzR 800 any quieter (engine making typical Polaris knock)

there is no magic liquid that fixes your engine. But... I used this in my differentials and transfer case of a 30 year old truck and it seems to help things run smoother and quieter. I didn't expect it to improve fuel economy, and it did not.

I did an oil change in my truck about a week ago, my drive is 130KM a day. I didn't really notice any fuel savings until the end of the week. My truck usually consumes 13.8-14.2Liters per 100 KM, now its stayed consistent @12.5L Per 100KM. SO imagine it should get better fuel economy in a few mores weeks. in my truck I use Castrol Edge 5W20. Also just do as the instructions tell you to add to the oil its not the entire jug for one oil change which i first thought. I highly recommend this product for every car enthusiast.

Great product