Originally Posted By: OilNerd
CTC oil? Is that Canadian Tire oil or another brand?
Also, how much Sea Foam do you use with your gas/oil mix when you use it?
That's correct. CTC off the shelf $15.00/gallon. Been using it for twenty years or more. The snowmobile crowd up here in Canada love it. They say it's low ash emission help keep the engine nice and clean.
If I'm doing an engine clean on a well running engine, I'll put four ounces in a gallon of fuel every other year or so. For storage purposes, I'll use one oz. per gallon of fuel.
I know that the preponderance of fuel additives out there are snake oil. I've tried numerous products over the years and found that the only thing they removed was money from my wallet. SeaFoam is the first product that I've used that I could visibly see results and improved engine performance. That was on a couple of old two stroke engines that had not been used for a while (because they were running poorly to begin with). I was actually surprised to see that the SeaFoam had a positive effect on them!
The secret to keeping any occasional use engine running right is fuel management. Clean, water free fuel to begin with, drained or stabilized for off season storage and running the carb dry will go a very long way to keep an engine running right.
I use SeaFoam more in two strokes just to help keep carbon build up down, particularly on the older engines that run more oil in the mix. I've torn down some two stroke engines that had the piston rings locked solidly in the groove and rendered virtually useless. One was on an old vintage Yamaha RD400 that I recently restored. The other was on an old 3.5 h.p. outboard motor that spent it's life trolling. Not sure how effective it will be keeping the rings free but I have seen SeaFoam lift carbon off the top of the piston in a relatively short period of time.
The most effective way to use use SeaFoam for cleaning the engine is to fire up the engine and spray it directly into the carb causing the engine to stall. I like to spray it until the engine begins to falter, slow down the spray for a few seconds, keeping the engine barely running, allow the engine to pick up speed then pour the SeaFoam to it until it stalls. Leave it over night then fire it up the next day. Repeat as required. When doing this on multi cylinder two cycle engines, it's imperative to feed SeaFoam through all carbs at the same time. Two strokes multis don't share an open crank case. Each cylinder/piston has it's own portion of the crank separated from the next by a labyrinth seal. So, if using one spray can of SeaFoam, you'll need to rig up a multiplier to feed the carbs.