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Ethanol-free I believe is the key here. Being that the version available to me here is 92 and expensive, I went ahead and filled the cans with 87 from the Exxon, late last night, and ordered a bottle of Sta-bil 360 to throw in there. A little over $8 for a 10oz bottle, and 1oz treats 5 gallons, I think it'll be fine.
I wonder how similar your gasoline is to ours here in the US. I'm not really too concerned about hard cold starts, the real concern I've got is damage from moisture absorption due to the ethanol content. The gas is probably pretty safe in the Jerry cans as long as they're full, not much room for air in there, but anything left in the generator's tank, as well as the lawn equipment and pressure washer, would probably be at risk. Southeast Texas is swamp humid almost all year-round.
Similar but not identical - I think. I think we are at 5-10% ethanol on standard gasoline but the 'premium' higher octane fuels (eg Tesco Momentum) are ethanol free. I buy it for both the Suburban and strimmer for its longevity - and in the previous (turbo) car for its octane. In that car it was more expensive but better mpg made it cost effective and it just ran so much better.
Once the cap is on and sealed there can only be the moisture in the headspace before closing. Nothing more can enter.
The gasoline left in my strimmer is fine for a year or so - but the tank system is completely sealed and, NE Scotland aint particularly humid. If the tanks you mention are totally sealed then should be as per your Jerry cans - no? If they are vented and breathe - block the breathers?
The Jerry cans are sealed, 100%. It's the small engine stuff that isn't. Unsure on the newer things like the generator and pressure washer, but the lawnmower and weed whacker have vented caps. Assuming they all do as they'd need to draw in from atmosphere as the fuel depletes.
Enough to notice in a pinch, I'd guess - 9500W/12500W peak on gasoline, vs. 8500W/11200W peak on propane. My intent is to use it as a "whole house backup" but within reason. It will be hooked to the house when needed via a generator socket on the breaker box, but we'll shut off breakers to rooms and appliances we don't need, to avoid accidentally overloading it.
Hello
I'm surprised your weed whacker has a vented cap. A 2T on a Go-Ped here has a vented cap but all my strimmers and chain saws have sealed caps - to avoid spillage if inverted.
Surprised again. I'm assuming a mixer type propane system. The general consensus is that on propane due to circa 4% loss of volumetric efficiency (air displaced with gaseous propane) and similar loss of power. That though, assumes the venturi in the mixer is adequately sized for gasoline operation and to allow for low speed pick-up they are often smaller (no sophisticated idle and pilot circuits that gasoline carbs have) and that usually impinges on top end power which ever fuel is in use. Only top end power though. Lower in the rpm range the torque will still be there.
Different options available to you there with either fuel. From here I can't tell the nature of propane tank(s) you'd be using. Just to add though, if you were using pre-filled portable types, then they could possible be available in a power outage when gasoline couldn't be pumped. (You'd have to know if the generator draws liquid (does it have a vaporiser?) or gas from the tank. Portable pre-filled tanks tend to deliver in vapour form).
