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Will it hurt a 4 stroke boat motor to run airplane gas in it?I have a buddy that flies and own's planes and said that's what he run's in his 4-wheelers and boats said it won't go bad.I was wondering if it's not too hot and burn up a piston or something,he swears by it and said he's had no problems.
Won't hurt anything without catalytic converters. It will get to hot on them cats and actually melt em.
ducker is right on this one
I know a lil something about 100LL!
me to, burnt many a gallon when i had my race truck, course we added a little sumthin to it...lol
Look at the cost. You probably can't write yours off. I'm sticking with the Sea Foam.
LikeQuote:
Originally Posted by ducker
If you can afford airplane fuel for the boat you shouldnt be worried about the damage. Im sure you can get it fixed
If u do its best to mix with reg. Straight AV gas runs a bit rich and hot. I used it in my dirt track cars but wouldn't run it in an injected motor/puter controlled imo
Lets say you burn 75 gallons of fuel a year in you boat that $225 of regular fuel u bought now lets say u run airplane fuel in your boat motor and it tears something up and you have to replace the motor how much does that cost think I would keep the airplane fuel in the airplane
I agree with Slabin !
If you ain't buying the avgas I'd run it, but it's running about $4.80 right now
I don't run my boat as much as most of yall do,it's a 25hp 4 stroke Nissan.I probley won't burn more than 12 gal. a yr little more if we have to use it duck hunting.My gas just keep's going bad use regular gas no ethanol and use sta-bil,don't really know if it's bad from the station (small town don't know how long it's sitting in his tank) or going bad in my tank but was told avgas would'nt go bad.
Just burn the left over gas in your boat engine tank in the car, truck lawn mower, or 4-wheeler, and buy fresh when ya go fishing. Only 12 gal a year!!!! Those Tohatsu/Nissan 25's will run for days on 2 gal.
I am a huge believer in Sea Foam. There's been a lot of conversation on the forum that it's only a conditioner and not a stablizer, and should be mixed with marine Sta Bil. Been using it alone in non-ethanol gas three years and it has solved all my problems. My boat sits idle during the heat of summer and the dead of winter. I run all the gas out of my motor at the beginning of each event. June 15th to Sept 15th and Nov 15th to Feb 15th. I have full confidence it will crank before it turns over twice.
Yes it will pistons can't handle it
Whats the Octane rating?
Never heard of rich being a problem, lean yes.
120 octane on av gas
Avgas is 100 octane
Probably dating myself, but back in the day, there was red avgas 80 octane and the blue which was 100. Haven't been hanging around the airport in a few years so don't know what they have now.
That's what I would think. Too hotQuote:
Originally Posted by torch
Just use regular gas. With Stabil, and non ethanol gas, it should last a year or so. Ain't no oil in the gas to make the gas varnish or go that bad. Now ethanol gas is a different story!!!!
You can locate Regular, Non-Ethanol gas in your area with this link.
http://pure-gas.org
Been useing ethanol gas mixed with stabil and a water separator filter for eight years now with no problems in my four stroke
Regular gas has a higher BTU rating and burns cleaner and a bit hotter in your engine. Ethanol will phase separate after storing for long periods. 4-Strokes will burn (or blow out) the separated fuel because of the high pressure fuel system required to push the fuel through the injectors, but can cause piston damage over the long haul because of the lower octane rating after the alcohol in the ethanol absorbs the moisture (water) that causes it to separate.
Glad it's working out for ya, but I don't use stored ethanol in any of my engines. I do work on a bunch of em that do tho.
BTW, if ya burn through your fuel like in your vehicle, the ethanol is fine. It doesn't have time to separate before you burn it.
Are you going to fly-N-fish? No really I would not put that in my motor. Like "G" said I used the ethanol in my 115hp four stroke but I would burn it all out within a few days after fueling the boat. I also used the stabill with it.