Gas/Oil Premix Thread
#251
I hate to disagree with you, and I dont know what the feedstock is for these oils, but you are wrong on a couple things so you may be wrong on others, so I'll ask.
First, neither polyisobutylene nor isobutylene are long chain olefins. isobutylene contains 4 carbons and is an olefin. When an olefin is polymerized the product is referred to as a poly(olefin), meaning that it's an olefin which has been polymerized, and the double bonds are now gone, so the product is actually a parafin, it's saturated.
Secondly, I didn't think that PIB is such a good material for an oil - I'm going to have to look it up tomorrow but I thought this was a gummy substance not oily. Depends on molecular weight sure but isobutylene is not the nicest thing to polymerize to low molecular weight, which would give you the right viscosity for a motor oil.
Usually if you want something greasy you want something with a lot less branching in the backbone - PIB is very highly branched! Now, oil technology is VERY complex, and maybe PIB is a small component. If I have time I'll check Lucas' patents and see if I can add anything to the conversation. NO promises, tho.
I dont know what "too" biodegradable means, but there is no reason that biodegradability and combustability have anything at all to do with one another. In a very very broad sense, the more oxygen in a compound the less combustible it is, and for bugs to eat something generally it is nice if you have functional groups in them, which tend to contain oxygen. But from there, there is no connection whatever between biodegradability and combustability.
Example: Ethanol is biodegradable (drink beer??) and very combustible.
First, neither polyisobutylene nor isobutylene are long chain olefins. isobutylene contains 4 carbons and is an olefin. When an olefin is polymerized the product is referred to as a poly(olefin), meaning that it's an olefin which has been polymerized, and the double bonds are now gone, so the product is actually a parafin, it's saturated.
Secondly, I didn't think that PIB is such a good material for an oil - I'm going to have to look it up tomorrow but I thought this was a gummy substance not oily. Depends on molecular weight sure but isobutylene is not the nicest thing to polymerize to low molecular weight, which would give you the right viscosity for a motor oil.
Usually if you want something greasy you want something with a lot less branching in the backbone - PIB is very highly branched! Now, oil technology is VERY complex, and maybe PIB is a small component. If I have time I'll check Lucas' patents and see if I can add anything to the conversation. NO promises, tho.
I dont know what "too" biodegradable means, but there is no reason that biodegradability and combustability have anything at all to do with one another. In a very very broad sense, the more oxygen in a compound the less combustible it is, and for bugs to eat something generally it is nice if you have functional groups in them, which tend to contain oxygen. But from there, there is no connection whatever between biodegradability and combustability.
Example: Ethanol is biodegradable (drink beer??) and very combustible.
Originally Posted by StealthTL
Pre-mix oil is the one place that the term "synthetic" definitely belongs!
Synthetic two-stroke oil is mostly made from poly-isobutylene, a long chain olefin (PIB is not an "oil", hence synthetic) that has tremendous lubricity, yet burns like gasoline, with no smoke and leaving no deposits. Rumor has it (it's a secret) that this is the major component in Lucas Upper Cylinder Lubricant, and actually removes carbon deposits.
Castor oil based products would never say "synthetic" on the label, because they use natural old-school gummy veggie oil.
TCW-3 is pretty poor in most areas, (due to it's high emphasis on being bio-degradable when it is exhausted into a lake) modern synthetics can do much better - it is also renowned for building up slimy jello deposits in the jug or in your oil tank. Maybe a little TOO bio-degradable?
S
Synthetic two-stroke oil is mostly made from poly-isobutylene, a long chain olefin (PIB is not an "oil", hence synthetic) that has tremendous lubricity, yet burns like gasoline, with no smoke and leaving no deposits. Rumor has it (it's a secret) that this is the major component in Lucas Upper Cylinder Lubricant, and actually removes carbon deposits.
Castor oil based products would never say "synthetic" on the label, because they use natural old-school gummy veggie oil.
TCW-3 is pretty poor in most areas, (due to it's high emphasis on being bio-degradable when it is exhausted into a lake) modern synthetics can do much better - it is also renowned for building up slimy jello deposits in the jug or in your oil tank. Maybe a little TOO bio-degradable?
S
#252
Originally Posted by KimiFelipe
I spoke with my dealer's rotary guy when I picked up my car, and I asked him if I should premix, and his response was "absolutely not." He's been working on rotaries at least 15 years iirc.
Now I'm really confused, but I think I'll try it for a tank or two.
Now I'm really confused, but I think I'll try it for a tank or two.
Alternatively many folks with years of rotary engine tuning experience (not at a dealership) seem to support the idea as a supplemental way to provide more uniform lubrication than the OMP may be able to provide at all times. I personally ordered some Idemitsu synthetic pre-mix oil from the guys at Mazdatrix, and am going to start using it soon in small mix quantities with each tank of gas. The page with the Idemitsu info can be found here:
http://www.mazdatrix.com/q-supply.htm
Last edited by N10S; 12-18-2006 at 11:14 PM.
#253
Metatron
iTrader: (1)
Pib...
You are right, when we make it, it's an olefin, but as used, it would be reffered to as simply a polymer.
I wouldn't waste my time looking up the qualities of PIB, if you think it wouldn't make a good oil component - just try and find a modern ISO-EGD spec synthetic two-stroke that DOESN'T contain it. They would be rare.
"our company" uses 45% PIB, with a little PIB-succinimide as a dispersant.
I never said that TCW-3 is any more "deposit forming or smoking" just because it is bio-degradable, it is just more "jello and slime forming", due to it's vastly different priorities. In order to cut down on the metallic additives, they use hydrazine compounds as detergents, these contain a lot of nitrogen and slime-bugs just love nitrogen.
S
I wouldn't waste my time looking up the qualities of PIB, if you think it wouldn't make a good oil component - just try and find a modern ISO-EGD spec synthetic two-stroke that DOESN'T contain it. They would be rare.
"our company" uses 45% PIB, with a little PIB-succinimide as a dispersant.
I never said that TCW-3 is any more "deposit forming or smoking" just because it is bio-degradable, it is just more "jello and slime forming", due to it's vastly different priorities. In order to cut down on the metallic additives, they use hydrazine compounds as detergents, these contain a lot of nitrogen and slime-bugs just love nitrogen.
S
#254
Registered
Originally Posted by Brettus
Just a thought - if premix really helped that much , your engine had/has a problem .
Recall done with no probs . . . 8600 miles on the car.
Read the threads. There are a lot of reasons why this would help, even on a healthy engine. Better lubrication helps any engie, and this engine's two biggest moving parts are only lubricated well by finding ways to consistently get adequate lubrication into the combustion chamber.
Last edited by RX8Maine; 12-19-2006 at 05:12 AM.
#255
Registered
Originally Posted by StealthTL
Rumor has it (it's a secret) that this is the major component in Lucas Upper Cylinder Lubricant, and actually removes carbon deposits.
S
S
#256
Out of NYC
iTrader: (1)
Idemitsu for almost 10K miles no problems ! Pass Recall and everything. Engine is happy !
I dont know what others are thinking, but I think Premix are cool and will continue to do so.
I use Royal Purple Full Synthetic Engine Oil too ! Does that help also ? :P (I dont want to start another Synth vs Dino war!)
I dont know what others are thinking, but I think Premix are cool and will continue to do so.
I use Royal Purple Full Synthetic Engine Oil too ! Does that help also ? :P (I dont want to start another Synth vs Dino war!)
#257
Originally Posted by StealthTL
You are right, when we make it, it's an olefin, but as used, it would be reffered to as simply a polymer.
I wouldn't waste my time looking up the qualities of PIB, if you think it wouldn't make a good oil component - just try and find a modern ISO-EGD spec synthetic two-stroke that DOESN'T contain it. They would be rare.
"our company" uses 45% PIB, with a little PIB-succinimide as a dispersant.
I never said that TCW-3 is any more "deposit forming or smoking" just because it is bio-degradable, it is just more "jello and slime forming", due to it's vastly different priorities. In order to cut down on the metallic additives, they use hydrazine compounds as detergents, these contain a lot of nitrogen and slime-bugs just love nitrogen.
S
I wouldn't waste my time looking up the qualities of PIB, if you think it wouldn't make a good oil component - just try and find a modern ISO-EGD spec synthetic two-stroke that DOESN'T contain it. They would be rare.
"our company" uses 45% PIB, with a little PIB-succinimide as a dispersant.
I never said that TCW-3 is any more "deposit forming or smoking" just because it is bio-degradable, it is just more "jello and slime forming", due to it's vastly different priorities. In order to cut down on the metallic additives, they use hydrazine compounds as detergents, these contain a lot of nitrogen and slime-bugs just love nitrogen.
S
#258
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Never too late to start pre-mixing? I've got 34k mi. now, but am wanting to give it a try.
>side note: I was the first at my dealer to get the recall. I've recently lost some trust in the mechanics at this dealer. Would it be overkill to have my ECU software version verified? Is there a possiblity that they didn't flash the correct version? (sorry for the hijack)
>side note: I was the first at my dealer to get the recall. I've recently lost some trust in the mechanics at this dealer. Would it be overkill to have my ECU software version verified? Is there a possiblity that they didn't flash the correct version? (sorry for the hijack)
#259
He's as bad as Can
Originally Posted by Rhythmic
Never too late to start pre-mixing? I've got 34k mi. now, but am wanting to give it a try.
#260
Boosted Kiwi
iTrader: (2)
Originally Posted by RX8Maine
If that is the ony way you can interpret the results, then I suggest you NOT try it.
Recall done with no probs . . . 8600 miles on the car.
Read the threads. There are a lot of reasons why this would help, even on a healthy engine. Better lubrication helps any engie, and this engine's two biggest moving parts are only lubricated well by finding ways to consistently get adequate lubrication into the combustion chamber.
Recall done with no probs . . . 8600 miles on the car.
Read the threads. There are a lot of reasons why this would help, even on a healthy engine. Better lubrication helps any engie, and this engine's two biggest moving parts are only lubricated well by finding ways to consistently get adequate lubrication into the combustion chamber.
My comment was just suggesting that premix can improve the performance if you have other issues . If your engine is fine - it will not .
#262
Registered
"If your engine is fine - it will not."
That's a pretty empirical statement.
Why would Mazda use it in racing applications?
I haven't driven anyone else's 8, but I don't have any reason to believe mine was troubled before doing this. Even the "rough idle" is probably a non-issue. The car idles more smoothly than any other car I have owned, but it seems like everyone else claims they can't tell theirs is running without looking at the tach.
What we need is for someone with a brand new 8 to do this as soon as they complete their break-in, possibly even with pre- and post- dyno runs. I'd be willing to contribute toward the cost. I think a lot of people are curious about this.
That's a pretty empirical statement.
Why would Mazda use it in racing applications?
I haven't driven anyone else's 8, but I don't have any reason to believe mine was troubled before doing this. Even the "rough idle" is probably a non-issue. The car idles more smoothly than any other car I have owned, but it seems like everyone else claims they can't tell theirs is running without looking at the tach.
What we need is for someone with a brand new 8 to do this as soon as they complete their break-in, possibly even with pre- and post- dyno runs. I'd be willing to contribute toward the cost. I think a lot of people are curious about this.
#263
He's as bad as Can
Originally Posted by dynamho
How does one use a premix -- just pour the measured amount into the gas tank before filling up so it gets mixed by the filling action?
#264
Metatron
iTrader: (1)
Pre.....
Yeah, that's what I do, just pour my little bottle in, but I usually wait until I have two gallons in - then dump it in. The reason I do it that way, is that twice I put the oil in and there was a pump problem (once it was out of gas, once the computer that ran the pumps was broken) so I had a really rich mixture in there as I drove to another gas station.
So now I make sure the gas is actually going IN before I add, probably just another little bit of paranoia....
S
So now I make sure the gas is actually going IN before I add, probably just another little bit of paranoia....
S
#265
Out of NYC
iTrader: (1)
Originally Posted by StealthTL
Yeah, that's what I do, just pour my little bottle in, but I usually wait until I have two gallons in - then dump it in. The reason I do it that way, is that twice I put the oil in and there was a pump problem (once it was out of gas, once the computer that ran the pumps was broken) so I had a really rich mixture in there as I drove to another gas station.
So now I make sure the gas is actually going IN before I add, probably just another little bit of paranoia....
S
So now I make sure the gas is actually going IN before I add, probably just another little bit of paranoia....
S
Too much premix wouldnt hurt the engine, Its just gonna waste your money. (Im not asking you to dump JUST premix into the tank !)
#267
Originally Posted by RX8Maine
"If your engine is fine - it will not."
That's a pretty empirical statement.
Why would Mazda use it in racing applications?
I haven't driven anyone else's 8, but I don't have any reason to believe mine was troubled before doing this. Even the "rough idle" is probably a non-issue. The car idles more smoothly than any other car I have owned, but it seems like everyone else claims they can't tell theirs is running without looking at the tach.
What we need is for someone with a brand new 8 to do this as soon as they complete their break-in, possibly even with pre- and post- dyno runs. I'd be willing to contribute toward the cost. I think a lot of people are curious about this.
That's a pretty empirical statement.
Why would Mazda use it in racing applications?
I haven't driven anyone else's 8, but I don't have any reason to believe mine was troubled before doing this. Even the "rough idle" is probably a non-issue. The car idles more smoothly than any other car I have owned, but it seems like everyone else claims they can't tell theirs is running without looking at the tach.
What we need is for someone with a brand new 8 to do this as soon as they complete their break-in, possibly even with pre- and post- dyno runs. I'd be willing to contribute toward the cost. I think a lot of people are curious about this.
If there is enough interest from the board to fund the testing, I'd be willing to submit my car as a test mule, as long as this is just dino runs. Know a shop in the area? Maybe KTR performance in Ayer?
#268
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Join Date: Sep 2002
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i started pre mixing a few months ago and bought the castrol non synthetic 2 stroke oil as that was the only thing i could find at the time. I thought it worked good for me, smoother idle and seems like better throttle response.. got through a bottle of that and located a motorcycle parts store near me and bought 2 bottles of red line synthetic 2 stroke oil.. works evern better and smoother... I can definitely recommend the red line... there, it sold normally for 6.50, but got it for 5 bucks on sale
#269
Registered
Originally Posted by StealthTL
probably just another little bit of paranoia....
#272
Threads like this drive me crazy…
Originally Posted by KimiFelipe
I hate to disagree with you, and I dont know what the feedstock is for these oils, but you are wrong on a couple things so you may be wrong on others, so I'll ask.
First, neither polyisobutylene nor isobutylene are long chain olefins. isobutylene contains 4 carbons and is an olefin. When an olefin is polymerized the product is referred to as a poly(olefin), meaning that it's an olefin which has been polymerized, and the double bonds are now gone, so the product is actually a parafin, it's saturated.
Secondly, I didn't think that PIB is such a good material for an oil - I'm going to have to look it up tomorrow but I thought this was a gummy substance not oily. Depends on molecular weight sure but isobutylene is not the nicest thing to polymerize to low molecular weight, which would give you the right viscosity for a motor oil.
Usually if you want something greasy you want something with a lot less branching in the backbone - PIB is very highly branched! Now, oil technology is VERY complex, and maybe PIB is a small component. If I have time I'll check Lucas' patents and see if I can add anything to the conversation. NO promises, tho.
I dont know what "too" biodegradable means, but there is no reason that biodegradability and combustability have anything at all to do with one another. In a very very broad sense, the more oxygen in a compound the less combustible it is, and for bugs to eat something generally it is nice if you have functional groups in them, which tend to contain oxygen. But from there, there is no connection whatever between biodegradability and combustability.
Example: Ethanol is biodegradable (drink beer??) and very combustible.
First, neither polyisobutylene nor isobutylene are long chain olefins. isobutylene contains 4 carbons and is an olefin. When an olefin is polymerized the product is referred to as a poly(olefin), meaning that it's an olefin which has been polymerized, and the double bonds are now gone, so the product is actually a parafin, it's saturated.
Secondly, I didn't think that PIB is such a good material for an oil - I'm going to have to look it up tomorrow but I thought this was a gummy substance not oily. Depends on molecular weight sure but isobutylene is not the nicest thing to polymerize to low molecular weight, which would give you the right viscosity for a motor oil.
Usually if you want something greasy you want something with a lot less branching in the backbone - PIB is very highly branched! Now, oil technology is VERY complex, and maybe PIB is a small component. If I have time I'll check Lucas' patents and see if I can add anything to the conversation. NO promises, tho.
I dont know what "too" biodegradable means, but there is no reason that biodegradability and combustability have anything at all to do with one another. In a very very broad sense, the more oxygen in a compound the less combustible it is, and for bugs to eat something generally it is nice if you have functional groups in them, which tend to contain oxygen. But from there, there is no connection whatever between biodegradability and combustability.
Example: Ethanol is biodegradable (drink beer??) and very combustible.
But… make believe, for a second, that I'm just an average Joe who doesn't happen to be a petrochemical engineer. You guys make it amazingly difficult to get an answer to a simple question: should I premix… or not? Especially when we have "dueling" petrochemical engineers. Even if I could understand it—which I can't—who the hell am I supposed to believe??
#274
Boosted Kiwi
iTrader: (2)
Originally Posted by RX8Maine
"If your engine is fine - it will not."
That's a pretty empirical statement.
Why would Mazda use it in racing applications?
I haven't driven anyone else's 8, but I don't have any reason to believe mine was troubled before doing this. Even the "rough idle" is probably a non-issue. The car idles more smoothly than any other car I have owned, but it seems like everyone else claims they can't tell theirs is running without looking at the tach.
What we need is for someone with a brand new 8 to do this as soon as they complete their break-in, possibly even with pre- and post- dyno runs. I'd be willing to contribute toward the cost. I think a lot of people are curious about this.
That's a pretty empirical statement.
Why would Mazda use it in racing applications?
I haven't driven anyone else's 8, but I don't have any reason to believe mine was troubled before doing this. Even the "rough idle" is probably a non-issue. The car idles more smoothly than any other car I have owned, but it seems like everyone else claims they can't tell theirs is running without looking at the tach.
What we need is for someone with a brand new 8 to do this as soon as they complete their break-in, possibly even with pre- and post- dyno runs. I'd be willing to contribute toward the cost. I think a lot of people are curious about this.
I have done mods to my car that the dyno shows as a 10hp + improvement but really struggle to feel a difference on the road .
#275
Originally Posted by New Yorker
Hey, I appreciate the wealth of information—like this—available on forums like this one. That's one of the good things about the internet.
But… make believe, for a second, that I'm just an average Joe who doesn't happen to be a petrochemical engineer. You guys make it amazingly difficult to get an answer to a simple question: should I premix… or not? Especially when we have "dueling" petrochemical engineers. Even if I could understand it—which I can't—who the hell am I supposed to believe??
But… make believe, for a second, that I'm just an average Joe who doesn't happen to be a petrochemical engineer. You guys make it amazingly difficult to get an answer to a simple question: should I premix… or not? Especially when we have "dueling" petrochemical engineers. Even if I could understand it—which I can't—who the hell am I supposed to believe??