Author Topic: fuel stabilizer  (Read 825 times)


  • P323
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  • Model: P323
  • Vessel Name: Courtesan
  • City: Scarborough
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fuel stabilizer
« on: February 16, 2018, 12:36:52 PM »
Good Afternoon ..

Last  year, with some assistance we removed my atomic 4 and had it rebuilt; runs like new again ! 
I also drained the fuel tank while the A4 was out and replaced with 15 gallons of hi octane fuel. The engine was winterized after haul out but I forgot to add fuel stabilizer as I've done in the past.

My question .. am I safe starting the engine with this "unprotected" fuel or should I drain the tank again.
I just don't want to take any chances

Graham  (Hull #96)


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    • S/V Dolce Vita
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  • City: Pasadena
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Re: fuel stabilizer
« Reply #1 on: February 17, 2018, 01:17:17 PM »
Bacteria won't grow in gas, so the only concern is water intrusion.

Using a hose, siphon a sample from the very bottom of the tank and examine it in a glass container.  Any water or phase separation should be obvious.

If your tank fittings and fill cap seals are all good, you are likely alright.   I regularly leave a full tank of gas (to minimize air exchange) over the winter with no stabilizer and have had no problems in 8 seasons.  YMMV  :)
@(^.^)@  Ed
1977 P-323 #42 "Dolce Vita"
with rebuilt Atomic-4