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Old 01-06-2008 | 02:04 AM
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Default Anyone wear out an engine using particular oil at recommended oil ratio?

I am asking this question because I keep seeing threads asking about what oil is the best and what ratio is better. This is an age old question that comes up over and over again. I was guilty of posting this question before. I really don't think there is a absolute answer.

After reading all the oil posts here and in lawncare forum ( a lot, I would have to say ) I almost never hear anyone said "I use this brand and at this ratio, after xxx hours my engine wear out" !!!!

Engine die because people forget putting oil!!!!! Or some other odd reasons!!!! ( of corse within reason, if you have two thousand hours and more, that is very good and it is normal!!!!)

Is this true? If anyone think otherwise, please post. I think it is more useful to know this than to keep asking what oil and what ratio. There is no corect answer!!!!

My suspision is most oil are good enough and most oil ratio within reason is ok. That's why we keep getting opinion, not a lot of facts. So I put the question:

Have you experience engine wear out using any oil at the recommended ratio or have you run into problem using different ratio? I think this will be more useful. If you have any experience with engine failure, please post and state the condition and I am sure people will analyse it and everyone learn from it.

I'll be the first one to say. I did try using Mobil Racing 2T at 32:1 in my Shindaiwa C4 4 cycle engine with mixed oil, and I check the plug and muffler. Plug got a little wet and have carbon in the exhaust port, can't see the piston and ring because it's a 4 cycle and can't see the piston by removing the muffler. Idle rough also. The engine like Echo power blend much better. It actually clean the oiol left by the Mobil. Idle smooth. I try Shindaiwa One oil also, and The Shindaiwa blower don't like it!!!! It idle rough. Remind you that this is tested at 32:1 only and each run is only for one to three tankful of gas. Might work better at 50:1. I don't draw any conclusion. I lean the mix down to 44:1 using Echo Power Blend now because I was told by 2 good shop people that 4 cycle with mix oil engine is very sensitive to deposits on the valve and should not put too much oil.
Old 01-06-2008 | 02:07 AM
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Default RE: Anyone wear out an engine using particular oil at recommended oil ratio?

I have never worn out any RC gas engine because of time, it would take years.

you might need to ask a landscaping company this question
Old 01-06-2008 | 02:42 AM
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Default RE: Anyone wear out an engine using particular oil at recommended oil ratio?

I wore out a few weed eaters as a kid. I had a lawn care business from the time I was 14--19yrs old. I always used some cheap old Wal-Mart 2-stroke oil because I was a kid and it was cheap. It took about 4 years of hard running to wear out a couple Ryobi trimmers. All they really needed was a new set of rings, but we didn't have the internet in those days and it was cheaper to just buy a new machine than screw with an old one. I had grass to cut and money to collect. Too busy to fuss with a weed eater that didn't owe me a thing after so many years of abusive service.

They were carboned up in the mufflers. Those spark restrictor screens and tight mufflers collected a lot of soot and carbon. I was mixing my oil at 32:1 and they smoked like hell--but it was cheap oil, don't forget that.

I could venture a guess on how much time was on those machines. Probably 1hr a day for about 150 days a year x 4 yrs. Whats that? About 550hrs on a weedie engine that I never cleaned or did squat to it. Just put fuel in them-- spark plug once a year-- and ran the snot out of them.

Those are cheap engines too. I would think a higher quality chainsaw engine (Sachs based - Brison, FPE, Fox, Taurus, Zenoah etc..) would last at least 3 or 4 times that long if you kept oil in it and didn't smack it into the ground.

If you read back through my posts in this forum, you will find that I've been telling people the brand and type oil doesn't matter. Pick one and mix it according to the label--run it. I've been saying that for years, but not many will listen. They just keep drinking the Kool-Aid and buying the Super Duper Turbo Prop Twister Synthetic oils that cost $20 a quart because they think it will make their engines last longer.
Old 01-06-2008 | 02:42 AM
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Default RE: Anyone wear out an engine using particular oil at recommended oil ratio?

Kind of my point!!
Old 01-06-2008 | 03:15 AM
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Default RE: Anyone wear out an engine using particular oil at recommended oil ratio?


ORIGINAL: Rcpilet
They just keep drinking the Kool-Aid and buying the Super Duper Turbo Prop Twister Synthetic oils that cost $20 a quart because they think it will make their engines last longer.
There should be little doubt that synthetic oil performs better than conventional, don't lose that in your comments. As you point out, that is a moot point because conventional oil works so well (if used properly, having enough oil is FAR more important than brand or type) that the lifespan of these engines is practically infinite. Making it 3x infinite is not really worthwhile considering that you can save enough using the cheaper oils that you can buy a new engine off the savings well before the old one wore out.

Mark
Old 01-06-2008 | 03:29 AM
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Default RE: Anyone wear out an engine using particular oil at recommended oil ratio?

Hi Rcpilet
Did you open the engine up to confirm the ring all worn out or just lost compression? From what you describe, carbon and stuff can stick the ring and prevent the ring to expand to give a good seal, that is one of the failure of engine. Maybe between cheap oil and extra oil, after 550 hours will do it. BUT BUT BUT!!! The most important, you got 550 hours out of a Ryobi, a single ring cheap engine. I don't exactly call this bad at all. Thanks I hope more people can put in their experience.

BTW how are the ball bearings?

Thanks

I am curious how big a difference is pure synthetic oil compare to just any JASO FC or FD. I am using Echo Power Blend which is JASO FD. I am just playing it safe, not using the cheapest but cheap JASO FD. Echo is about as cheap as it get for the JASO FD.
Old 01-06-2008 | 09:20 AM
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Default RE: Anyone wear out an engine using particular oil at recommended oil ratio?

I can't imagine anyone wearing out a modern gas engine. They live a terribly easy life and at 10 to 15 min a flight 3 times a week, they really don't get much use.

With that said, I think your question is a little incorrect. Your questing seems to suggest that engine life is what defines a "good" oil. Engine life is not the issue for myself or most modelers. I think the real issue is how cleanly your engine runs. I want an oil that doesn't stick rings, foul plugs and throttles crisply. Since engine life is a given, I don't add that to the list. There are ENORMOUS differences in how oils performs when it comes to keeping and engine clean and thereby, running reliably over time. I already have a job. I want my gas engine to start and run without weekly cleanings and tons of flipping.

Short answer... You would be better served choosing an oil (and mix ratio) for reasons other than engine life.

Bill
Old 01-06-2008 | 09:24 AM
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Default RE: Anyone wear out an engine using particular oil at recommended oil ratio?

bought a g23 on ebay that was run at 100:1 ran good just as the seller discribed. rings both came out of piston in pieces cause they were stuck real good. chrome wore off inside of cylinder over 50% of full area. enough crisco is better then not enough amsoil.
Old 01-06-2008 | 10:01 AM
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Default RE: Anyone wear out an engine using particular oil at recommended oil ratio?

bought a g23 on ebay that was run at 100:1 ran good just as the seller discribed. rings both came out of piston in pieces cause they were stuck real good. chrome wore off inside of cylinder over 50% of full area. enough crisco is better then not enough amsoil.
What lesson did you learn from this?

I run Amsoil at 100:1 in everything I own. I have ONE jug of gas pre-mix for all my 2C gas engines. Chains saws, 63cc leaf blower, 32CC leaf blower, string line trimmers, brush cutters and, yes, model engines.

Given the above, I have to question the assertion the engine was:
1. run on Amsoil
2. run at 100:1
3. run "good"

Possible causes to your engine problems might be:
1: run on outboard 2C oil or 10w40
2: run on Amsoil at 24:1 ( "just to be safe" )
3. run lean
4. run on lawn mower fuel. i.e. no oil

I believe you've been lied too and I hope you're not suggesting the lesson is that Amsoil is bad.?.? The lesson I learn from this is, when buying used engines off eBay, you pays your money, you take your chances.

Attached is a picture of my 3W-B2 70 piston after considerable running. This was taken almost 7 years ago and this engine is still installed in my Carden CAP and running strong without maintenance. When I say without maintenance, I mean I haven't removed, muchless cleaned, the plugs or rebuilt the carb.

Another lesson to be learned might be that no oil, no matter how good, will prevent and engine from being damaged if not used properly.

Bill
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Old 01-06-2008 | 10:22 AM
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Default RE: Anyone wear out an engine using particular oil at recommended oil ratio?

not at all suggesting amsoil is bad. i disagree with the volume of the oil content used. i use amsoil 100:1 at 50:1 in my atv. then again its 250cc the fuel volume going through a 250cc engine is much higher then the fuel volume going through a g23. that means the oil content available is much higher even if the mix is the same ratio. smaller leaner running 2 strokes need more oil content. i dont see why he should have lied esspecialy when i voiced my dissatisfaction of lean ratios when asking the oil type and ratio question. im not questioning the integraty of the seller,just the protection 100:1 offers in small 2 strokes. many forget the ratio of fuel flow due to engine size is a factor,and oil content can be decreased with engine displacment.
Old 01-06-2008 | 10:22 AM
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Default RE: Anyone wear out an engine using particular oil at recommended oil ratio?

i have not and don't think i ever will
Old 01-06-2008 | 10:29 AM
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Default RE: Anyone wear out an engine using particular oil at recommended oil ratio?


ORIGINAL: krayzc-RCU

i have not and don't think i ever will
do not understand your quote,what do you mean to say here?
Old 01-06-2008 | 11:06 AM
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Default RE: Anyone wear out an engine using particular oil at recommended oil ratio?

Anyone wear out an engine using particular oil at recommended oil ratio?
i have not and don't think i ever will
Old 01-06-2008 | 02:02 PM
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Default RE: Anyone wear out an engine using particular oil at recommended oil ratio?

My question I am trying to ask is "Anyone have damaged engine due to kind of oil used and/or the ratio used". I absolutely not trying to ask what is the best oil. Everyone have their favorite oil and theirs is always the best!!!!! Their mix ratio is always the best ratio!!!!!

I did not specify wearing due to bad lubrication only. Deposit can damage engine also like sticking the ring, plug the engine etc. I know all about bad oil suppose to leave deposit. My question is " Who actually had experience damaging their engine" not just someone believe that bad oil will damage engine.

I want to separate people that believe bad oil can damage engine to people that actually experienced damage that due to bad oil....which oil?......How bad? Real facts, not editorial.

People keep posting " I use this oil at this ratio and I have been running for this many hours and have no problem" This kind of posting have been around for many years, it has been repeat and repeat and repeat and repeat and repeat......and repeat......and repeat......
and repeat!!!!!! and repeat.

It is more educational if someone tell us what to avoid and why......From real experience.

I posted the same question on the lawnsite forum and so far nobody answer!!!!!! Really seems like everyone only want to say how good their oil and ratio is. Nobody have any real experience!!!!! They only want to speak, loud, over and over and over.



BTW a lot of lawncare people use Amsoil at 80:1. Just a piece of info.
Old 01-06-2008 | 02:24 PM
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Default RE: Anyone wear out an engine using particular oil at recommended oil ratio?

I too love this oil discussion stuff. The comment was made above "There should be little doubt that synthetic oil performs better than conventional.....". I have read and posted links on this forum to the information showing through scientific testing that simply is NOT true. Each has his own opinion and I would not hesitate to run one of the modern synthetic oils in my engines. I do not, however, believe that any of the synthetics are "the best". My belief is, as the test I mentioned above showed, that there is a dino oil that is equal to or superior to any synthetic available today. As others have stated, most engine failures have little to do with the type of oil and more to do with other issues such as cooling or lack thereof. Engines run too lean will also have problems. Some are stating their opinions as though they were fact and in the scientific world truth usually has some empirical evidence to back it up. I saw a picture above showing how good a particular engine looks after many years of running. A true test would be running four or more of that same model of engine with different types of oils under identical conditions and them disassembling them to compare. (Yes I know I am leaving out some details but I simplified the test for the sake of time) I don't see many here who have done these types of tests nor do I see many refering to tests others have done along these lines. For those interested there is another thread running that has links to these types of tests.

That's just my two cents.

Edited to add: To the above post, no I have never had an engine fail due to oil type. I have and use both synthetic and dino oils. The only dino oil I use is in a yellow bottle. I do not run any less oil than 32:1 in any of my stuff and after reading Gordon Jennings article examining the effects of various ratios of oil to fuel likely never will. (Since I do not run ratios like 100:1 I haven't personally experienced a failure of that type although I have taken a number of engines apart that the piston was severly scored and galled and in every case the owner was running synthetic at ratios greater than 50:1. (One was at 80:1 and the rest at 100:1)

Also, yungman, lawn equipment engines are run much different than our stuff.
Old 01-06-2008 | 04:04 PM
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Default RE: Anyone wear out an engine using particular oil at recommended oil ratio?

I have seen just one wore out gasser. It was a Q 35 and it had about 20 years on it. It had finally wore through the chrome liner, bearings and seals were OK. The oil of choice for the flier was " what was on sale". So who knows what went through it.
I have seen the results of a 1000 hr run (24-7)on a Sachs 4.2 based engine. Using dino oil at 40:1 only thing out of specs for NEW parts were the rings. Look like they would go 2-300 more hours before needing replacement.
To be truthfull about it any MODERN 2c oil will let an engine run its full rated lifetime. The wrong oil mix, carb adjustment or lack of proper cooling is what kills most new engines
Old 01-06-2008 | 04:25 PM
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Default RE: Anyone wear out an engine using particular oil at recommended oil ratio?

ORIGINAL: Jezmo

I too love this oil discussion stuff. The comment was made above "There should be little doubt that synthetic oil performs better than conventional.....". I have read and posted links on this forum to the information showing through scientific testing that simply is NOT true. Each has his own opinion and I would not hesitate to run one of the modern synthetic oils in my engines. I do not, however, believe that any of the synthetics are "the best". My belief is, as the test I mentioned above showed, that there is a dino oil that is equal to or superior to any synthetic available today. As others have stated, most engine failures have little to do with the type of oil and more to do with other issues such as cooling or lack thereof. Engines run too lean will also have problems. Some are stating their opinions as though they were fact and in the scientific world truth usually has some empirical evidence to back it up. I saw a picture above showing how good a particular engine looks after many years of running. A true test would be running four or more of that same model of engine with different types of oils under identical conditions and them disassembling them to compare. (Yes I know I am leaving out some details but I simplified the test for the sake of time) I don't see many here who have done these types of tests nor do I see many refering to tests others have done along these lines. For those interested there is another thread running that has links to these types of tests.

That's just my two cents.

Edited to add: To the above post, no I have never had an engine fail due to oil type. I have and use both synthetic and dino oils. The only dino oil I use is in a yellow bottle. I do not run any less oil than 32:1 in any of my stuff and after reading Gordon Jennings article examining the effects of various ratios of oil to fuel likely never will. (Since I do not run ratios like 100:1 I haven't personally experienced a failure of that type although I have taken a number of engines apart that the piston was severly scored and galled and in every case the owner was running synthetic at ratios greater than 50:1. (One was at 80:1 and the rest at 100:1)

Also, yungman, lawn equipment engines are run much different than our stuff.



My point exactly: Bottom line, I really did read a lot of the articles here and in 3 lawnsides. Hundreds of postings. Everyone talk about their oil and ratio are the best, all threads end up in name calling and nobody learn anything.

The toallity of all the posts lead me to draw conclusion that most oil work, most ratio within reason is ok. One person here have a valid point that it is the deposit that do more damage. So is running too lean. I am willing to be wrong. Let's have an open mind. We don't want to be stuborn like the ones that avocate certain oil. Let people that experience problem join in and then analyzing the result. Rule out lean running and other problem to see whether oil has anything to do with the damage. We can all learn.

For the people want to post here to tell how good their oil and ratio is. There is another post at this very moment on that subject in the forum. Join them instead of here. I don't mean to be rude, but this is not about that. This is about listening to people that have experienced engine failure and think that it's attributed to oil or ratio and we can analyze the information to learn about it. Since no one have the time or money to run test that cover all the different sutuation. This might be the next best thing.
Old 01-06-2008 | 08:29 PM
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Default RE: Anyone wear out an engine using particular oil at recommended oil ratio?


ORIGINAL: tkg

I have seen just one wore out gasser. It was a Q 35 and it had about 20 years on it. It had finally wore through the chrome liner, bearings and seals were OK. The oil of choice for the flier was " what was on sale". So who knows what went through it.
I have seen the results of a 1000 hr run (24-7)on a Sachs 4.2 based engine. Using dino oil at 40:1 only thing out of specs for NEW parts were the rings. Look like they would go 2-300 more hours before needing replacement.
To be truthfull about it any MODERN 2c oil will let an engine run its full rated lifetime. The wrong oil mix, carb adjustment or lack of proper cooling is what kills most new engines

I don't recognize the brand Sachs, is it suppose to be commercial with 2 rings? For commercial, 1500 hrs is not the longest, for regular home owner engine, it is very good!!! How is deposit on the piston and ring/s? Deposit below the ring?(bad)!!

The Q 35, 20 years, how many hours? How's deposit? That already sounds very good!!!!

I agree, I think having oil and not running too lean is the most important, everything else is secondary. I just play it safe and use the cheapest JASO FD oil. I got Echo at Home Depot for $4.99 per 16oz.
Old 01-06-2008 | 08:54 PM
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Default RE: Anyone wear out an engine using particular oil at recommended oil ratio?

I have found Citgo JASO FD for $12/gal at many auto parts and sporting goods stores, its labeled as "aircooled" or "sea and snow".
Old 01-06-2008 | 10:16 PM
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Default RE: Anyone wear out an engine using particular oil at recommended oil ratio?


ORIGINAL: yungman
The toallity of all the posts lead me to draw conclusion that most oil work, most ratio within reason is ok.
That is about the best statement I have seen regarding oils. As far as ratios go, the only work I have seen really is the Jennings one that showed more oil made more power. Period. Makes more gunk as well, but his results were very clear.

Use ANY quality oil, use enough of it, keep it a bit rich and go fly. Then say goodbye to oil related issues.


Mark
Old 01-06-2008 | 11:52 PM
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Default RE: Anyone wear out an engine using particular oil at recommended oil ratio?


ORIGINAL: mmattockx


ORIGINAL: yungman
The toallity of all the posts lead me to draw conclusion that most oil work, most ratio within reason is ok.
That is about the best statement I have seen regarding oils. As far as ratios go, the only work I have seen really is the Jennings one that showed more oil made more power. Period. Makes more gunk as well, but his results were very clear.

Use ANY quality oil, use enough of it, keep it a bit rich and go fly. Then say goodbye to oil related issues.


Mark

Amen!!!
Old 01-06-2008 | 11:56 PM
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Default RE: Anyone wear out an engine using particular oil at recommended oil ratio?

I would bet a pile of money that 99% of engine failures are user induced. Set your needles correctly, baffle well and supply adequate air flow. Use a good oil at manufacturers recommendations and forget it. one last thing, I prefer to use oils that mix in the range of 32-50:1
Old 01-07-2008 | 12:31 AM
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Default RE: Anyone wear out an engine using particular oil at recommended oil ratio?


ORIGINAL: RTK

I would bet a pile of money that 99% of engine failures are user induced. Set your needles correctly, baffle well and supply adequate air flow. Use a good oil at manufacturers recommendations and forget it. one last thing, I prefer to use oils that mix in the range of 32-50:1
99% sounds a bit low to me...

Mark
Old 01-07-2008 | 01:14 AM
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Default RE: Anyone wear out an engine using particular oil at recommended oil ratio?


ORIGINAL: yungman


ORIGINAL: mmattockx


ORIGINAL: yungman
The toallity of all the posts lead me to draw conclusion that most oil work, most ratio within reason is ok.
That is about the best statement I have seen regarding oils. As far as ratios go, the only work I have seen really is the Jennings one that showed more oil made more power. Period. Makes more gunk as well, but his results were very clear.

Use ANY quality oil, use enough of it, keep it a bit rich and go fly. Then say goodbye to oil related issues.


Mark

Amen!!!
I have seen mufflers more than 1/2 blocked with carbon when a common brand of oil was used at 32:1. An oil and ratio change solved that problem. I do believe there are differences in oils .... all seem to lubricate just fine but the carbon produced can be very different from oil to oil.
Old 01-07-2008 | 02:25 AM
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Default RE: Anyone wear out an engine using particular oil at recommended oil ratio?


ORIGINAL: Truckracer


ORIGINAL: yungman


ORIGINAL: mmattockx


ORIGINAL: yungman
The toallity of all the posts lead me to draw conclusion that most oil work, most ratio within reason is ok.
That is about the best statement I have seen regarding oils. As far as ratios go, the only work I have seen really is the Jennings one that showed more oil made more power. Period. Makes more gunk as well, but his results were very clear.

Use ANY quality oil, use enough of it, keep it a bit rich and go fly. Then say goodbye to oil related issues.


Mark

Amen!!!
I have seen mufflers more than 1/2 blocked with carbon when a common brand of oil was used at 32:1. An oil and ratio change solved that problem. I do believe there are differences in oils .... all seem to lubricate just fine but the carbon produced can be very different from oil to oil.
You might have a point, maybe if someone have problem with deposit using certain oil and ratio, which cause problem on engine, please tell me so we can all learn. Very good point!!
THANKS


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