Posts: 3508
Location: Elk River, Minnesota | Hiya!!
I would agree overall.
With a 2 stroke, lubrication is carried by fuel, so fogging through the intake coats all of the internal parts as it passes through the crank case, then on to the cylinder.
4 stroke engines are systems that essentially isolate the crank case from the cylinder itself, so the internal parts of the crankcase are always lubricated with oil.
Fogging will coat the moving parts such as the valve train, and will work it's way down around the piston rings as well. Depending on the position of the intake and exhaust valves, spraying oil into the cylinder through the plug hole can do a fairly decent job of this as well. Going through intake is probably a bit more thorough overall, though.
Years ago, we would use 2 tbsp of 2 stroke oil and put it down each cylinder, then slowly crank the engine over to disperse the oil as best as possible. It did an adequate job, but probably was not as good as using fogging oil through the intake.
Steve |
