Senior Member
Engine/Gas Treatment
The summer came to an end very quickly. I am already looking at servicing my boat for the winter. Normally I just treat the gas with dry gas. But I have been reading a lot about the horror stories about what happens to blended gas while in use and over the winter. I am looking at running a product through the engine before I winterize it. What would you guys recommend. I have heard of running a product manufactured by Seafoam. What do you guys use?
1984 Supra Rider
Senior Member
Im old fashioned and just use Sta-Bil Fuel Stabilizer
86 Saltare
Senior Member
do you run it through the engine or do you just treat the tank?
1984 Supra Rider
Senior Member
I always dump a can of sea foam into my tank, run it to warm up the engine to change the oil and suck RV antifreeze into the block.
Former owner of a 1987 Supra Saltare. Current owner of a Malibu 23LSV.
Senior Member
I usually fill the tank so I know how much is in there and add the right amount of Sta-bil and then run the engine for 10 min or so and kill it. Gives the treated Gas time to enter the Carb where it will sit all winter.
Then I pull the plugs and spray fogging oil.
Then I winterize it.
86 Saltare
Senior Member
Just did our's Sat.
Same process as jasun.
Added marine stabile and Marvel Mystery Oil and ran to change the oil. Changed the oil/filter, then ran to suck up antifreeze, pulled plugs and sprayed with fogging oil.
2004 Supra Launch 22 SSV
5.7L Indmar Assault
"One More Hour"
Senior Member
Unless you're replacing your plugs, just spray fogging oil down the carb until the engine dies and you'll accomplish the same thing. I suck up 5 gallons of anti-freeze, then fog the engine out while it sucks gallon #6 and call her good.Originally Posted by jzelt
Former owner of a 1987 Supra Saltare. Current owner of a Malibu 23LSV.
Senior Member
Sea foam is good , stabil also .. Both are fine .. Remember to pull the plugs from the exhaust manifolds ... The old ones i took off mine were cracked .. And if any standing water /antifreeze are in them i would try my best to dry 'em out a bit
LIFE IS TOO SHORT NOT TO BE LIVELY
Moderator
Come on, I say you do it one last time, you know, for old time's sake.
'86 Comp TS6M - Reborn 2016
Riding a HO Sports CX Ski
Senior Member
I have a PCM 454 and on both sides my block plugs are a square headed plugs. There is also a square headed plug right above the oil filter on the port side of the engine... is this a water drain plug also?
Sorry for the Hijack.
86 Saltare
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