Has any tried the Amsoil Engine Flush. Was there any performance gain by cleaning out the varnish and sludge from your engine?

 

Several people here have used it with no bad results. I think it's bunk, by that's just my opinion. And your certainly not going to gain HP from an engine flush.....

-RMB

 

It is good to use on decent mileage cars before switching to synthetic...

if someone who doubts would see the distinct diff between the regular interval oil drain and one that has been flushed, you would likely change the "bunk" opinion...but that is okay...not everyone believed the Maxima could run 11 sec 1/4 miles either.