Rislone® 4744-4PK DPF Clean™ Diesel DPF, Exhaust & Emissions System Cleaner, 16.9 oz, 4-Pack

This is a good product to use to keep DPF (diesel particulate filter) clean and to clean a dirty DPF to eliminate the check engine light code. One treatment has kept the CEL from reoccurring for the last 2000 miles since I used it. I plan to treat every 5000 miles as a precaution to clean the DPF and fuel injectors.

Waste of money, 2018 ford f250 , 125453 kilometres, 6.7 power stroke. Followed directions and it did absolutely nothing for my truck, engine light still on and no performance difference.

I started using this app uear ago when I had a DPF sensor issue. I replaced the sensor and have been using this every 5k since. This is what I have noticed. Quicker regeneration it takes have the time to complete a regen. Regeneration is less frequent and DPF indicator takes much longer to accumulate.. I know there's no real science behind my claims but it's hard to ignore . I used to have random exhaust codes too and those have stopped completely I get great MPGs and the 6.7 is always super smooth and quiet. This is just my observation in my situation but if your having regeneration and egr issues which we all know is common with these this rislone product has seemed to serve me well.

This product seems to be working. Had to use 2nd bottle to get the code off for the exhaust. Been off for 3 days now. Will use a bottle at every oil change (5,000 mi). THX

Took a while longer to work than the instructions but cleared message. Debating whether or not to buy one to have on hand.