It seems ok but didn't work as I had hoped. My '03 BMW 4.4 Liter V-8 engine is still making the same "clattering" sound on startup so the super thick, 'sticky' oil didn't quiet the noise.

I had heard from my mechanic that this product might make a difference in how my 1998 Jeep ran and boy was he right! I will keep putting this in as long as I own the car. Thanks Hyperlube!

I tried hyperlube on a whim and have been very impressed with the results. I drive a 94 5.2l ram 1500. It smoothed out my motor and has helped a lot with stalling while cold. I have also tacked about 2mpg onto my average since I changed my oil and added hyper lube. Highly recommended for high milage engines.

Definitely recommend using this in any vehicle you own helps out alot in higher milage vehicles overall great peace of mind of having a product like this adding life to your engine.

Love this Product value is spot on Wal-Mart use to sell it for 7.99 but they don’t won’t to sell anything anymore for people. But you can still get it online for a good value thanks

I will say that this stuff is at least somewhat effective and because of that it does represent at least a marginal value for the money spent. Archoil 9100 or what we that scam is called costs 5x more and did absolutely NOTHING when I tried it out.This product sells fo $7-8 everyday at W@1mar+. These Walmart vendors are currently asking almost double.This is a good but specialized product most folks will never need. I wanted to see if it could quiet down some of the NVH from a ford 7.3…

Where ATF is, in the transmission, why the heck it says it's good mix with ATF too on the bottle, false! Thanks for attention!

Great stuff, it quiets lifter tick noise, gives you better gas mileage, and helps your engine run more efficiently. Good protection on cold start ups and at extreme hot temperatures. Good for all engines both high mileage or new. I add it to all my vehicles when doing oil changes. Whether it's a 400hp muscle car, or your daily commuter Honda Accord. It's a great additive esp when paired up with full synthetic oil. Basically just like BG MOA, but half the price.

Thick as molasses. Quiets noisy lifters and tick tick sounds helping to keep wear and tear down.best to use with a fresh oil and filter change.Thus if you use a good amount, you may need to adjust your oil viscosity at oil change.Example: if you are using five quarts of 5w30 you can go to four 5w20 with one quart of this additive if replacing all 5 quarts of oil.