Suffering from bad blow-by and therefore low compression. Getting about 14.7mpg. Figure the compression is the cause, seeing as how low compression will wreak havoc on the mileage of an otherwise in good condition car. Just replaced the TPS and MAF, doubt those are the issue. Entire temp sensor suite is also good. Dumped in a can of Restore Engine Restoring fluid. Had an immediate increase in throttle response and also gained some power. I believe the fluid is helping. Will change the oil in approximately 2 weeks (100 miles) and add an 8-cylinder-sized can. Will then change oil at the 500 mile mark and again when the odometer reaches 275,000 miles. Will then proceed with standard 5,000 mile interval oil changes. Currently at 270,368. I believe that adding the fluid and flushing the remainder will improve my mileage.

I will post results as they come, let you know how the fluid works and whether or not I recommend it. Preliminary (lol I said that) results are looking positive, let us see if it holds through my testing. I believe that no internal blockage will occur, as Restore Engine Restoring fluid is a low-temperature evaporating fluid holding several million micrometer-sized spherical particles of CSL (copper silver lead) amalgam. I believe the fluid merely lets the particles melt and form to where they will go and the excess is the flushed along the path of the oil until it is drained. If tests go well, I will continue to add a 4-cylinder sized can every winter until the rings or engine are replaced.

 

you need to rebuild the engine or replace it.

 

Yes, I believe this winter I will pull apart the engine for a more thorough inspection. I believe that it will only require a ring job as otherwise the engine runs fine. If the damage is more severe than it seems, I will replace the engine before rebuilding.