With 206,000 miles on my 03 CRV, I am using about 1 quart of oil every 2,000 miles. I read a lot about people using Seafoam to free up stuck rings and clean out carbon from the combustion chambers. I figured, "what the heck, for a few dollars I'll try it". Yesterday I poured about 1/3 a bottle of Seafoam into my power brake vacuum port with the engine at about 1,200 rpm. I poured it in slowly as the engine almost died a couple times. It took me a few minutes to pour in 1/3 of the bottle as white smoke filled the parking lot. I did this in the O'Reilly Auto Parts parking lot and nobody even gave me a second look. I waited 15 minutes and drove off leaving the whole neighborhood clouded in white smoke.
When I got home I changed the oil and could smell the Seafoam odor from the valve cover when I took off the oil fill cap so obviously Seafoam worked its way into the crankcase.
This morning I drove the CRV around and could tell by my seat of the pants dyno that I don't press so deep into the gas pedal to move the vehicle. I would say I have less of a lag in acceleration. I believe this means I cleaned carbon from stuck rings and the rings are now doing a better job at sealing compression in the combustion chamber. Hopefully the oil control rings will seal better whereby they will prevent oil from entering the combustion chamber. I'll keep an eye on the oil level and keep my fingers crossed.
When I got home I changed the oil and could smell the Seafoam odor from the valve cover when I took off the oil fill cap so obviously Seafoam worked its way into the crankcase.
This morning I drove the CRV around and could tell by my seat of the pants dyno that I don't press so deep into the gas pedal to move the vehicle. I would say I have less of a lag in acceleration. I believe this means I cleaned carbon from stuck rings and the rings are now doing a better job at sealing compression in the combustion chamber. Hopefully the oil control rings will seal better whereby they will prevent oil from entering the combustion chamber. I'll keep an eye on the oil level and keep my fingers crossed.