Scotty-
My fiancée has a 2016 Chevrolet Equinox that idled slightly rough when sitting still in reverse. We had the throttle body cleaned and you suggested using Bernie's ATS Fuel System Cleaner as well, which we have and it seems to have helped the problem! Initially, we received the 505 Oil System treatment in error and had our money refunded so we could re-order the 505 Fuel System Treatment to put in the gas tank. Being that we still have the oil treatment, should we use it, or wait for a particular problem to occur before doing so? Also, if we do use it, should we pour it in within a certain amount of time before changing the oil or add it after a fresh oil change (since that means it would be in the engine for about 5,000 miles if fresh)?
Thanks in advance!
-Allen
Well, the oil additive is a cleaning device. You put it in the engine idling it in about 1800 RPMs for 20 minutes then immediately drain the oil and filter and replace it with new stuff. It's basically a great engine flush, but if your engine is not clogged up inside gummed up cuz the oils changed regularly, you don't need to do it
