FleetguardCummins Coolant Plus

Works great

I did not use Blue Devil sealer correctly and clogged my radiator and engine block. This product dissolved the crud caused by misuse of Blue Devil. I did not want to sell my 71 Datsun 521 truck with a clogged engine. A garage would have charged me hundreds for boiling out an engine block. Now I can sell my truck. The money will go into getting a pearl paint job for my 59 convertible Tbird. The color code is Diamond Blue, will paint with original color. I was depressed about clogging the engine but this product came to my rescue! I drove it on a hot day (near 110 degrees here in Fresno) going 70 mph on the freeway, it stayed cool at 180 degrees, amazing! I can move on finally I thought I was not gonna be able to navigate through this life’s journey but here I am ready for the next phase. I am even thinking about starting a chauffeur business with my Tbird.

I have a 03 Bluebird bus with the 5.9 Cummins that we couldn't get to quit running hot. Well this stuff is the ticket it cleared our clogged engine and running normal again.

Have orders from Amazon several times - every time has been excellent

Holy flush time !!Don't plan doing this on a 6.0 powerstroke on a Saturday .. You will need lots of time !!Follow the instructions , flush supper well. It turns silican into gel so you must flush it all out !!!

It seemed to work well but I was trying to clean a VERY dirty set of keel pipes for a boat not on the boat so my application was kinda wrong that’s my fault not there’s I would recommend using this product again

Does what is says for Detroit

Had some residual oil from blown head gasket in coolant reservoir. It didn't do anything to it. Unless seller is selling bottled water instead of fleetguard restore.