Customer Reviews for Oatey 32 oz. Oil Tank Fuel Sludge Treatment and Fuel Tank Cleaner

Excellent product. Cleans heating oil tank. Also cleans nozel. I use it in every fill along with the Hot Shot. Burns clean. I have notice tank last longer and a huge decrease in fuel oil smell in the house. Hense burning clean. 👍👍👍👍👍👍👍👍👍👍👍👍👍 GOOD PRODUCT!!!

All it is is mineral spirits. I purchased both the sludge fighter and hot burning additive and they have the same ingredients…….sheesh!

Easy to use and effective!

The stuff works! Two years I had continuous problems of one kind or another and always had to be calling for help when my furnace would stop running. My kerosene tank used to be under my deck thus I never had any problems. Once we removed it and purchased a new tank we had it installed behind the house and then we noticed we started having problems due to the weather and the outside elements. Somehow water was getting into the tank. The oil company changed a few things and recommended I put this stuff in once a year. It worked! I will never go without it!

The Sludge Treatment dissolved the sludge in our oil tank and as an added benefit, helped reduce the sludge-related friction on its oil level gauge. Great product and easy to use.

Oil tank was quite low, so I added this as it was being filled to prevent any stirred up sludge from causing problems. Turned off furnace for a couple hours to let things settle, and for this to do it's work. Never had any problems, and the furnace actually seems to start and run quieter and smoother since it worked it's way through the burner for a while.

Keeps oil tank for furnace free if sludge and helps keep furnace burning cleaner. Great stuff!

Stuff does work dispersing the water at the bottom of the tank.

Affordable, effective at eliminating sludge in the fuel oil tank. My oil fired boiler fires very smoothly since I started using this product. I do use recommended amount prior to each fill up

The product worked to de-clog our oil tanks. It did what we wanted it to do.

Put half a bottle into my 275gal tank about a week ago and tried to stir it up a bit. Just turned on my heat yesterday and the system's working. We'll see how it handles the first tank fill of the year in a few weeks.

I original thought this product could make my heating oil system better with so many +. Tried it for 4 years: every time I added it into a full tank, in a week, nozzles started to go bad (CAD cell display reads go up), then the nozzle stops working in about 1 month. Tried brass and stainless nozzles, same thing. Added 3 spin on filters, same thing. Nothing looked dirty but nozzles failed quickly with this product added in. Without it for 2 years, nozzles still give the same O2 reading.

Great stuff..couldnt top off tank so this potential sludge remover is ideal.

My burner stopped which required the relay to be reset. I did not experience a burner stopage after using the Sludge Treatment.

It was the first time I've used it and it worked very well.

Works to reduce sludge, been using for 10 + years.

Works well to fight sludge in heating oil