I am becoming a believer in Rislone Engine Treatment for internal engine cleaning purposes. This is based on an oil change just completed on my 2006 Honda Odyssey and a recent oil filter change-out done on my daughter’s ‘04 Volvo S80 with 2.5T engine. With respect to the Honda, just got back from a long road trip. Prior to road trip, I topped up the oil with about 6 oz of Rislone figuring that the long hot run out to Wisconsin and then back to Massachusetts would do some cleaning. Well, it cleaned! The XG7317 had an even coating of molasses like sludge on the filter. I have been cutting and examining the filters on this well maintained Honda 3.5L motor and have NEVER seen so much gunk on the filter. Nothing even close. Normally, I can see some of the amber/pinkish colored filter fibers on the Fram Ultra or amber color on most other cellulose based filters, but this filter was black and slimy. Glad I did the oil change when I did.
This XG7317 was on the vehicle for 19K miles. Seeing what I just saw, my recommendation for anyone running Rislone Engine Treatment is to be sure to change the filter early. I am quite positive that most of the crud loading on the filter was from the recent Rislone treatment and 2400 mile highway run.
I did scrape the sludge off the filter with my gloved finger and with a tool and applied it to my finger. The consistency was like a slightly gritty molasses, no hard large chunks. Oil that came out and oil that went back in was Shell Rotella Gas Truck 5W-30. New XG7317 Fram Ultra (OG) was installed.
BTW, I am a relatively new user of Rislone Engine Treatment, so I do not have a “usage schedule” developed yet, and have only recently seen the effects of its use. Bought a 6 pack of Rislone on Amazon (came out to about $5 per bottle). Probably going to buy another 6 pack.
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