Postby xtech » March 16th, 2007, 9:23 am
There are many so called "miracle" oil additives on the market that claim to do everything from clean your motor to increase performance, decrease emissions and increase gas mileage. I am here to tell you most of them are just Snake Oil. However we have been hearing glowing reports from people who have tried Engine Restorer by Restore Automotive Products. The claims were quite astounding; increased compression, reduced oil consumption, increased power and better fuel mileage.
EXPLAINING AWAY THE CLAIMS These same claims have been made before by other products. However it was easy to explain away how the products did it. Some oil additives reduce oil consumption because they thicken the oil. And thick oil is less likely to slip past the piston rings if the seal with the cylinder wall is less than perfect. Other oil additives claim to increase performance by increasing compression by removing any varnish buildup in the the piston's ring lands, the grooves the rings ride in on the piston. This would allow a stuck ring to move freely again and seal harder against the cylinder wall. However if there are scores or scratches in the cylinder wall, the rings will still leak compression.
"ENGINE RESTORER" CLAIMS
During normal engine operation, the piston rings slowly wear into the surface of the cylinder wall, creating tiny imperfections. These gouges or scratches then create a channel for pressurized combustion gasses to slip past the rings down into the crankcase. This does three things, first the available compression is lessened as the gasses pass downward into the crankcase. Two, this "blowby" contaminates the engine's lubricating oil with combustion gases containing acidic compounds. And three, crankcase lubricating oil is drawn upward through the same scratch channels into the combustion chamber to be burnt. This is where your oil goes in most cases if an engine is burning it (the exception would be a worn valve guide and seal).
Restore Engine Restorer claims to fill these scratches and improves the seal between the piston rings and the cylinder walls. This means higher compression and a more balanced compression across all cylinders. Since power output and engine efficiently are tied to engine compression, an increase here would naturally raise power output and increase engine efficiency thus raising fuel mileage while lowering oil consumption. The company claims that independent road tests prove "Engine Restorer" brings back power to near original levels.
“ENGINE RESTORERâ€