Kreen oil (Kano Kroil)
I've used this stuff to clean my Douglas, but anyone use this stuff for your engine (Kreen). It says you can add it to the gas or the engine oil, though I'd be leary about adding direct to the oil.. Looks like it might be the trick to keep my gas guzzlin rig in tip top shape.
"Kreen dissolves the carbon deposit buildups and varnishing to Improve Compression · Increase Gas Mileage Reduce Downtime · Restore Power "
Probably makes your teeth whiter and makes you smell better too !
Seriously I have been using Kroil as part of my bore cleaning solution for 20 years but never tried any of their products in my vehicle.
For a couple of vehicles I used Marvel Mystery oil-in tank and some in the crankcase.
Have not used lately and never figured out if it helped.
I now have an 08 Chevrolet w/ the oil change percentage indicator. Have changed oil/filter on this one about every 6000. Several before that I shot for every 3000.
When I was working my vehicles went 30 mi every time I cranked em up and 150 or so till a new one. I drove about 18000 just going to work. Lots of others do more than that-some lots more. We have a real rust problem here. Most were quite good engine wise but bodies badly corroded after 4 or 5 winters.
Kroil would be ok added to the fuel tank every once in a while as a top end cleaner. You don't say what your driving, but any kind of oil can and will affect the converters in to large of doses. I'd add no more than a pint to and empty tank then fill it. There's a reason Mercedes,Audi and BMW have eliminated dip sticks on thier engines. Keeps them out of the quicky-lubes. Can't over fill the oil that way and the manufactures don't have to warrenty catalytic converters as much.
You betcha there's a reason that they're doing that...So you have to come back to them for service! There is likely to be a large number of lawsuits filed due to violation of the Magnuson-Moss Act.
Originally Posted by 45bpcr
Another good carbon cutter is Seafoam upper engine cleaner.
I have resisted Kroil for a number of years because I don't like the texture or smell of it but was advised to use it in my RF rifle by the Smith who made it. Something I have noticed is that it seems to not initially take the loose carbon out of a barrel but rather soaks in. I then brush the B Heyseus out of it and the carbon seems to come out quite readily. The GM top end seem to worksort of the oposite from what I have experienced.
I learned this winter that there is nothing quite like a dozen strokes of a tight fitting patch impregnated with JB. That method is far and away the easiest and best way to get carbon out of a barrel. I owe the credit for thsi to Mr Octipus.
personally, I like the smell of Kroil.. now it says not to go to town with the stuff its toxic., not that that matters with all the oil laying around these days, .. on another note, my grand prix is doing ok using gum-out cleaner, but once awhile it fumbles..I had just bought some kroil and after experiencing its nice color, texture and viscocity I thought I might check their site, and the Kreen caught my eye..
anyway, ramblin on,, I was surprised at Kroil's texture, not what I thought it would be, not like oil at all, more like gasoline.. wouldnt be surprised if there was some rasberry coloring in it..