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Does 2-stroke oil get old

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Old 05-30-2008 | 04:42 PM
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From: Valley Springs, CA
Default RE: Does 2-stroke oil get old

I agree completely with Truckracer.

I only use pump gas in my stuff and I'm pretty picky abut the way my stuff works. It won't be much longer before ethanol will be a national requirement in any case. Too much money involved to let a state or two slip through the cracks...
Old 06-02-2008 | 07:00 PM
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Default RE: Does 2-stroke oil get old

Have you heard anyone say that gas with alot of ethinol doesn't work good with fuel stabilizers to keep the gas good longer. I could be mistaken thought I heard somthing like that.
Old 06-02-2008 | 09:30 PM
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Default RE: Does 2-stroke oil get old

Beats me. I can't see any reason to buy so much gas to require adding a stabilizer. I suppose there must be some reason for obtaining 50 to 1,000 gallons at a time but I'm not in a position where a trip to the local gas station for a gallon or two is a big deal.
Old 06-02-2008 | 10:10 PM
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Default RE: Does 2-stroke oil get old


ORIGINAL: Truckracer


ORIGINAL: Basil Yousif

I'll do a search for non-ethanol gas in CA. Will the R/C motors run better on it than the gas you can get anywhere that has ethanol.
My opinion is that the engines run the same regardless of whether the gas has ethanol in it or not. Some users feel that ethanol contributes to or accelerates the deterioration of carb diaphrams. Again, I have not seen this to be the case. I do believe that some local blends of gas across the country have chemicals that contribute to these problems ... but ethanol always seems to be the scape goat and gets the blame.

Short summary .... run what you have available in your area and rebuild the carb every few years or when necessary .... and don't worry about it between times. People really make way too much of this gas and oil thing!!
Agreed! I have yet to have a problem from ethanol blended gasoline.
Old 06-03-2008 | 01:37 PM
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Default RE: Does 2-stroke oil get old

I haven't run into gas that goes bad yet so I can't confurm what alot of people are saying about gas going bad but they say it turns gummy in carbs and inside tanks in a few months and adding a stabilizer will make it last up to a year. I have had gas in a can for the lawn equipment for over 6 months and never seen it go gummy. Does the gasser engine need after run oil or some kind of protection for the cylinder and the carb (like Glow) after running the gas/oil mixture or do you just leave it alone after flights. Also do you run out the extra gas in the carb when finished flying or is it okey to leave it in.
Old 06-03-2008 | 08:18 PM
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Default RE: Does 2-stroke oil get old

I have the 45cc crrc pro and am using 32:1 Stihl non synthetic for break in. I am now (after 1 gallon) switching to Stihl Ultra fully synthetic for the duration. Still wondering about a mix ratio with the synthetic oil. I'm thinking about going a little rich (40:1) simply because this engine has needle bearings on both ends of the rod. I really like this engine so far...
Old 06-03-2008 | 08:22 PM
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Default RE: Does 2-stroke oil get old

Oh yeah, I would definately chance the oil. It won't go bad sealed in just a few years. Hell, that's the only way we stay ahead of oil prices is by buying in bulk and storing. Bulk 2 cycle oil prices have gone up at least 3 times this year...ANY BRAND

Old 06-03-2008 | 09:08 PM
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Default RE: Does 2-stroke oil get old


ORIGINAL: Basil Yousif
Does the gasser engine need after run oil or some kind of protection for the cylinder and the carb (like Glow) after running the gas/oil mixture or do you just leave it alone after flights. Also do you run out the extra gas in the carb when finished flying or is it okey to leave it in.
Gassers don't need any after run oil like glow engines. As long as you run them once every 6 months or so, you're good to go. If you plan to put one away for several years, pull the plug out and shoot some oil in it and turn it over a few times.

I never run my carbs dry at the end of the day. I don't even suck the extra fuel out of the tank. I leave my planes in my 6' x 12' trailer year round, so a little fuel smell is not a problem.
Old 06-03-2008 | 10:10 PM
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Default RE: Does 2-stroke oil get old

ORIGINAL: Basil Yousif

Is it possible that the oil that tests bad was no good in the first place. Possibly recycled oil products that already had there vescosity broken down before and had not been recycled/filtered properly for use again. That's probably a good reason to stick with better quality oil and not cheap stuff where you don't know exatly what your getting.
Each batch of aviation lubricants all undergo testing to ensure they meet the specification they claim. Re-test is just that. Usually it is done at either 24 or 60 month intervals. If a specific batch is re-tested and found to be inferior or degraded, a notice is published to have all users dispose of the specific batch. ~ Kind of like the food industry, I suppose....
Old 06-04-2008 | 04:24 PM
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Default RE: Does 2-stroke oil get old

Don't you find that better quality brands last longer or the brand doesn't matter.

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