We often get questions about gasoline here winter vs summer blend, ethanol effect on MPG, gas quality, etc. Would be good to have answers from a pro! Wiki says "Though Coleman fuel has an octane rating of 50 to 55 and a flammability similar to gasoline, it has none of the additives found in modern gasoline and cannot be used as a substitute for gasoline, kerosene or diesel fuel in modern engines. You can either run white gas, buy a new, dual-fuel gas generator, or resign yourself to cleaning out the gas gen every 40 hours or so.
As noted in some of the other comments, Coleman fuel is a lower quality energy wise compound than gasoline. It was not so great to cook on ask anyone who has had to boil water on the old Coleman stoves.
White gas burned hotter for a simple reason—it is gasoline. It is gasoline without the antiknock additives, the original unleaded gas. It was usually priced higher than regular, a not surprising trick by oil companies—do less to the product and charge more.
I have both in the basement…fortunately no hurricanes in Palo Alto! He said he is a professional gasoline blender. In your scenario, if you ran out of gas and dumped in the coleman fuel. I don't recommend it. It is close enough to unleaded that many white gas camp stoves can burn unleaded without modification, if you don't mind your food smelling like gasoline. But whether you can go the other way and run Coleman fuel in a car, I don't know. I would worry, for example, that the octane rating might be too low and the engine would knock.
Propane is just that: Propane, and it's a gas unless under a fairly high amount of pressure, or at low F temperature. The only similarity between the two is that they both burn.
I will choose a path that's clear: I will choose Free Will! Others have answered portions: 1 Coleman fuel is Naptha 2 It can be used in a car, as it has no lead. It has no anti-knock or other additives, either, so should be used for emergency only. My brother ran into this very scenario with his mids Jeep. He ran out of gas, and dumped in Coleman stove fuel. As other replies in this thread have surmised, his engine was knocking all the way to the gas station.
After a fill-up, all was fine. Today's modern vehicles have EFI and knock sensors,so the motor will get it's timing adjusted,and should suffer a power loss with Coleman fuel. I saw my father do it in the early '70s and I did it around or so. Neither vehicle had a catalytic converter or Oxygen sensor so I can't say for sure that it wouldn't harm either but suspect it wouldn't.
Both cars pinged horribly on the Coleman but made it to the gas station without ill result and went well over , Miles afterwards. Newer vehicles might flag the "Check Engine" light if it runs out of adaptation trying to eliminate the spark knock or possibly even set a degraded cat code as I doubt the Coleman is an "oxygenated" fuel. In reply to ballsac: will it run on parafin? In reply to rallymania: i'm not sure - MSR says it burns white gas coleman fuel and unleaded petrol on the 'G' valve, and kerosene and diesel on the 'K' valve.
In reply to ballsac: but hang on, youre talkin the whisperlite, sans internationale? In reply to ice. In reply to ballsac: The Whisperlite hasnt been sold in the UK for 15 years or so. Dont use Diesel in a Whisperlite as the fuel line and jet will clog and block regularly with the additives in Diesel.
In reply to Paul F: cheers folks. In reply to rallymania: I think my brother used to use parafin, I can't remember if it needed priming with something else though? Just keep in mind that not every stove can work with all of these fuels. An un-opened container of Coleman fuel stored in a dry area with no rapid extreme changes in temperature will remain viable for years.
As Dave noted, the best way to get rid of old Coleman fuel is to put it in your car gas tank in small amounts, say a quart or less per tankful of car gas. Basically, as long as the canister fits, it will work. The answer ultimately is: it depends on your stove. In this case, propane wins, at least based on Coleman marketing. You can use kerosene in your Coleman lantern, though before you choose to do so, it is important to learn more about the maintenance requirements.
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