Richard Kim
Senior Member
- Joined
- Jan 23, 2018
- Posts
- 190
- Reaction score
- 269
- Location
- Houston, Texas
- Ram Year
- 2016
- Engine
- 5.7 hemi
Curiosity got the better of me after I kept on reading about Kreen on bobistheoilguy. Most of the users reported very positive results. I drive a 2016 2500 5.7 Hemi; truck is currently at 95K miles. I have always been meticulous about maintenance (5K full synthetic oil change interval with either Liquimoly MOS2 or Lubegard Biotech and quality filter: WIX XP, Bosch, Purolator Boss). Never had any engine issues and the lifter noise was very minor (cold acceleration, acceleration on a grade etc). I ordered a gallon of Kreen and put 16 oz into the oil.The oil (PUP 5w30) only had 4K miles on it. I was running the Purolator Boss filter. I ran the Kreen for only 300 miles.
Results:
First 50 miles = lifter noise reduced by at least 50%
Next 100 miles = any lifter noise eliminated
You are supposed to run it for 1,000 miles but wanted to change out the filter sooner just in case. The oil came out very dark and the filter felt heavier than usual. Still no noise with the new oil. I am thoroughly impressed. My theory is that the Kreen cleaned out the varnish off of the liters (Burla please chime in). I intend to do an 8oz treatment the next oil change and go back to regular oil changes.