Originally Posted by Mad_Hatter
Originally Posted by D1dad
I'm probably going to if the initial process doesn't work, I actually got two quarts. The direction for a "kreen purge" on the can are confusing. "Add one ounce into each cylinder, replace plugs and turn the engine over a few times then let set" does that sound right? Seems like the plugs would fouled or maybe not?
Watch this video👇.. it's essentially the same process, except you're using kreen instead of Seafoam. I personally have always used Berrymans for combustion chamber cleaning.
Put the plug(s) back on, just a few turns, before cranking in case the product wants to shoot out (something this guy didn't do but he did pour a lot of Seafoam in to begin with so..) and disconnect the coils so you don't get spark in any of the cylinders.
Do you know for a fact that you have poor compression?
I've never compression tested it. I bought the car new or almost and it's consumed oil from day 1, although not enough to satisfy Nissan. I changed the plugs at 90k and they looked fantastic so that rules out the precat issue that plagued the early qr25. The car runs rich as evidence of the tailpipe soot but runs like a Swiss Watch. I did the pcv a few times with oem and aftermarket and no change. Formula shell uses the least oil while Mobil 1 HM used the most. I bought several jugs of pp 10-30 on clearance so that's what it's getting for the foreseeable future. Ticks me off because the car is immaculate but uses oil, more at highway speeds, around 3/4 of a quart per 1k but hardly any around town. I pretty much gave the car to my son for college as well as top off oil so it is what it is at this point. The funny thing is after a fresh oil change it uses not a drop for the first 1k and then starts dropping like a rock?