Engine - to flush or not to flush ?

Thanks

Everyone, have a good week !

Why do you think you need to flush the engine with an oil additive? What are you hoping to accomplish?.

I know my comments to this question will generate some controversy but I"ll risk it anyway. I seriously doubt that any oil additive used for flushing the lube system out will cause any problems to your engine. All the comments I have seen have been anecdotal("My uncle"s cousin used Acme Lube System Flush and the next day he lost oil pressure ans spun a bearing....").Most likely, he had low oil pressure and thought the flush might help. His lube system was about shot and was on it"s way to causing the problem but he happened to add the flush and had the failure so it" blamed on the flush.It"s not like there are oil passage sizes chunks of sludge in the engine waiting to clog the lube system. I have used them to try to free what I thought was stuck oil control rings on a tired, sludged, engine with no improvement in oil control and no harm to the lube system
I don"t know if there is any value to flushes but I doubt that it"s harmful.The sludges I have seen have been a greasey like substance that might cause the pick up screen to clog except thye are so sticky that they adhere to whatever they are on and are hard to scrape off let alone fall off in big globs. These flushes are likely just solvents that dissolve some of the sludge and do little more.
Using a good grade detergent oil and changing it regularly is the best thing you can do for your engine, in my opinion.