GAS ENGINES AND HIGH OCTANE FUELS
#26

At the risk of seeming silly-
who did the test and why is in not worthy mention by various (any) engine /auto/ rv / etc ., mfgr?
OR --do they?
who did the test and why is in not worthy mention by various (any) engine /auto/ rv / etc ., mfgr?
OR --do they?
#29
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That would seem like an expensive fuel for a truck!
ORIGINAL: RTK
I do know one thing, a pickukp will run on coleman fuel. But it sure pings to bet all hell.
I do know one thing, a pickukp will run on coleman fuel. But it sure pings to bet all hell.
#30

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GEISTWARE- A buddy of mine ran out of gas when we where deer hunting. We had some left over and gave it a try. It worked well enough to get him out. (older truck)
#31
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The arguement on fuel can go on for ever but here are some points to remember
:-Octane will drop up to 3 points in 24hr
:-Octant is only one way of measuring fuel
:-In any given yeay the fuel companies change the composition MANY TIMES
:-Even in a Australia there are something like 16 different "Fuel mix" zones all of the time
:- the only constant fuel you can get is some of the pre drummed race mix from one batch lot
:- Unleaded fuel is often very dirty
I was involved in motor sport in which had to use premium unleaded & these things
were just some of the problems .
FRESH CLEAN FUEL is the best thing you can give any motor !!
:-Octane will drop up to 3 points in 24hr
:-Octant is only one way of measuring fuel
:-In any given yeay the fuel companies change the composition MANY TIMES
:-Even in a Australia there are something like 16 different "Fuel mix" zones all of the time
:- the only constant fuel you can get is some of the pre drummed race mix from one batch lot
:- Unleaded fuel is often very dirty
I was involved in motor sport in which had to use premium unleaded & these things
were just some of the problems .
FRESH CLEAN FUEL is the best thing you can give any motor !!
#32


Higher octane fuels "do not" run hotter. They burn slower which is actually cooler. Higher octane runs at a cooler combustion which helps eliminate the dreaded knocking. In some instances the higher octane fuels will add a plus on extremely hot days. I run 100 octane racing gas in all my engines. They love it, it smells better, it has a longer shelf life, it mixes very well and my leaf blower actually pisses my neighbors off on this stuff. At $3.75 a gallon it should..

I have a new DLE55 and a new DA85. All pump gas in Ireland has 10% ethanol, so I want to avoid that. I can get Aspen 4 which is 95 Octane or VP102 - 102.
Compression ratio of the DLE 55 is 7.6:1. Don't know the compression ratio of the DA85.
I'm looking for clean fuel and cool running, not more power. Mixing with Maxima Formula K2 100% synthetic oil.
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Charlie P. (09-01-2022)
#33

Wow! Way to activate a zombie thread. 18 years may be a record.
I use 93 octane in my gassers: 26cc, 34cc and 43cc, (and Husqvarna 52cc/Stihl 45cc chainsaws, 27cc H weed-trimmer, 747cc H lawn mower and 134 Cu. In. 1956 Ford 640 tractor that refuses a nerdy "cc" label). Not for the octane but for the lack of ethanol. I add a shot of Marvel Mystery Oil/gallon to the non-2-stroke Ford just to offset the lack of lead additives. Still pulling it's weight on the homestead.
I use 93 octane in my gassers: 26cc, 34cc and 43cc, (and Husqvarna 52cc/Stihl 45cc chainsaws, 27cc H weed-trimmer, 747cc H lawn mower and 134 Cu. In. 1956 Ford 640 tractor that refuses a nerdy "cc" label). Not for the octane but for the lack of ethanol. I add a shot of Marvel Mystery Oil/gallon to the non-2-stroke Ford just to offset the lack of lead additives. Still pulling it's weight on the homestead.
Last edited by Charlie P.; 09-01-2022 at 05:21 PM.
#34

what engines do you run 100 octane gas in?
I have a new DLE55 and a new DA85. All pump gas in Ireland has 10% ethanol, so I want to avoid that. I can get Aspen 4 which is 95 Octane or VP102 - 102.
Compression ratio of the DLE 55 is 7.6:1. Don't know the compression ratio of the DA85.
I'm looking for clean fuel and cool running, not more power. Mixing with Maxima Formula K2 100% synthetic oil.
I have a new DLE55 and a new DA85. All pump gas in Ireland has 10% ethanol, so I want to avoid that. I can get Aspen 4 which is 95 Octane or VP102 - 102.
Compression ratio of the DLE 55 is 7.6:1. Don't know the compression ratio of the DA85.
I'm looking for clean fuel and cool running, not more power. Mixing with Maxima Formula K2 100% synthetic oil.
If so, get Putoline "E10 fuel fighter". It works. No ifs and buts, it simply does. And it is cheap and frugal in use.
I know, because I have a 37 year old carburated bike (and the worst kind: Double barrel Weber), that started to run like crap when the fuels changed from E5 to E10. The slightly different fuel/air requirements of Ethanolated fuel made the bike run lean because the carb jets are still set up for non-ethanol fuel.
The use of that additive has totally revived the bike. Last 7 years my average dropped below 100 km/year of use and no use the last 2 years because it basically would not start anymore after a prolonged standstill. But since using that stuff (I saw it in a bike shop March this year), I saw to my surprise that I did about 2500 km in about 2 months (April and May this year)...
I work at sea, so the bike always sees periods of inactivity for 2,5 months. That would normally cause issues for its first start after such a period, but last week I got home and the bike basically started like it had been used the day before.
I am not imagining things, I own that bike since '94, and know it like the back of my hand, and have done all work on it (including two engine rebuilds and a 16" to 17" wheel conversion) myself.