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Gas/Oil Premix Thread

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Old 12-08-2010, 02:54 AM
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Originally Posted by Grace_Excel
The plugs are less than a 1000 miles. I have not changed the wires and coils due to insufficient funds. As soon as I have more, I will! Anyway, I suggest installing an oil catch can. For some reason, when I started premixing my car threw a CEL due to oil overflow and interfering with the MAF sensor.
I reckon that your ignition is more to blame for your problems than premix. Come back and let us know once you upgraded the coils and and wires.
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Old 12-08-2010, 03:40 AM
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Premix does not cause MAF issues or oil overflow...those are problems with overfilling your oil and oil getting sucked into your intake as a result.

Oil and fuel systems are totally separate.
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Old 12-08-2010, 03:52 AM
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Originally Posted by Flashwing
Premix does not cause MAF issues or oil overflow...those are problems with overfilling your oil and oil getting sucked into your intake as a result.

Oil and fuel systems are totally separate.
Yes, I may have overfilled the oil. I doubted myself and pointed the blame to the premix since it coincidentally occurs at the same time the first few fill ups and premixes I did altogether.

Last edited by Grace_Excel; 12-08-2010 at 03:57 AM.
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Old 12-08-2010, 03:55 AM
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Originally Posted by RX8.PIPE.DREAMS
I reckon that your ignition is more to blame for your problems than premix. Come back and let us know once you upgraded the coils and and wires.
On my 'to do list' this weekend It's been more than 37,000 miles since the coils have been checked.
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Old 12-08-2010, 04:04 AM
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Originally Posted by Beodude
Another thing I'm wondering... 4 cycle oil doesn't burn well, and can leave carbon (or even worse get coked up), especially dirty oil from the crank. This could very well be the major contributor to carbon build up in the Renesis.
Gas is the major contributor to carbon buildup, oil actually keeps the internals a bit cleaner if it burns right. At least where it matters

Don't focus too much on idemitsu or this or that brand, read a couple of motocross forums and see what leaves their engines clean.
I had a bad experience, like many others, with castrol's TTS line. It cocked my 2stroke engine up in less than 20hrs of use. Other lubricants left it way cleaner
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Old 12-08-2010, 06:38 AM
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So lots of talk on premix here (i use idemitsu btw), but very little regarding the actual benefits of adding FP+ to any premix. What is the general consensus on this stuff? Pretty damn expensive stuff too heh.

edit: Meh figured id skip the bickering in this thread and ordered a few bottles of saber pro w/ a bottle of fp+ to try for myself

Last edited by paimon.soror; 12-08-2010 at 07:10 AM.
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Old 12-08-2010, 09:46 AM
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Originally Posted by Grace_Excel
Yep, 12oz Valvoline 2-Cycle Motor Oil TC-W3 in the gas tank for my initial premix that coincidentally showed a P0102 CEL (MAF sensor circuit low input ON 1 CCM). Anyway, Chad D's right. Valvoline do stink! I grabbed it off the Autozone's shelf because that was the only brand familiar to me.
You still not understanding.

Originally Posted by Flashwing
Premix does not cause MAF issues or oil overflow...those are problems with overfilling your oil and oil getting sucked into your intake as a result.

Oil and fuel systems are totally separate.
Exactly.

Originally Posted by Grace_Excel
Yes, I may have overfilled the oil. I doubted myself and pointed the blame to the premix since it coincidentally occurs at the same time the first few fill ups and premixes I did altogether.
I suggest reading this entire thread all over again.

Originally Posted by paimon.soror
So lots of talk on premix here (i use idemitsu btw), but very little regarding the actual benefits of adding FP+ to any premix. What is the general consensus on this stuff? Pretty damn expensive stuff too heh.

edit: Meh figured id skip the bickering in this thread and ordered a few bottles of saber pro w/ a bottle of fp+ to try for myself
I read up on that stuff but I don't really see the point of using it. A good 2 stroke will burn and clean well. The FP+'s working ingredients would be rendered useless in the presence of the 2 stroke I would think. I have read that newer gas stations use plastic tanks and filters which supposedly cleans up the gas pretty well. So considering fuel is the major cause of carbon build up, I try and only use the new Shell station by my house. I have also read that there really is no better fuel system cleaner than Techron.

Last edited by 9krpmrx8; 12-08-2010 at 09:50 AM.
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Old 12-08-2010, 10:12 AM
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Originally Posted by 9krpmrx8
I read up on that stuff but I don't really see the point of using it. A good 2 stroke will burn and clean well. The FP+'s working ingredients would be rendered useless in the presence of the 2 stroke I would think. I have read that newer gas stations use plastic tanks and filters which supposedly cleans up the gas pretty well. So considering fuel is the major cause of carbon build up, I try and only use the new Shell station by my house. I have also read that there really is no better fuel system cleaner than Techron.
Thanks for the tips. I use the shell station close to my place and only use their V-Power gas (when i visit home I am forced to use Mobil 93). Since I ordered it I guess i will just drop an ounce per tank for good measure, we will see what happens i guess. Looks like some people stated that their exhaust is less sooty on their tail pipes so if i see any difference i might continue using it. Doesn't hurt i guess.
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Old 12-08-2010, 10:17 AM
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Originally Posted by paimon.soror
Thanks for the tips. I use the shell station close to my place and only use their V-Power gas (when i visit home I am forced to use Mobil 93). Since I ordered it I guess i will just drop an ounce per tank for good measure, we will see what happens i guess. Looks like some people stated that their exhaust is less sooty on their tail pipes so if i see any difference i might continue using it. Doesn't hurt i guess.

I have only heard good things about it from guys who use it on Piston motors but they are not premixing their gas with anything else so it's not a fair comparison. I would get a glass container and mix gas, Idemitsu, and FP+ and see how it all mixes together.

Last edited by 9krpmrx8; 12-08-2010 at 10:20 AM.
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Old 12-08-2010, 10:30 AM
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^^ Yea i will give it a shot. I will actually be using it with the amsoil but either way, probably be a good idea to test with my own eyes before blindly dumping it all in and hoping it mixes well :-p
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Old 12-08-2010, 02:46 PM
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I just feel that there is no point in mixing with funny/unknown stuff. Idemitsu works fine, I will stick with that only.
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Old 12-08-2010, 05:48 PM
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Originally Posted by paimon.soror
So lots of talk on premix here (i use idemitsu btw), but very little regarding the actual benefits of adding FP+ to any premix. What is the general consensus on this stuff? Pretty damn expensive stuff too heh.

edit: Meh figured id skip the bickering in this thread and ordered a few bottles of saber pro w/ a bottle of fp+ to try for myself
I stopped using FP+ after two users I know needed new engines. In and of itself that doesn't really prove anything because so many people have needed new engines, maybe as high as 25%. It sounds good in theory, ie, the whole idea of converting carbon to a graphite lubricant, but there's no real long-term evidence proving it works any better than 2-stroke and doesn't cause any potential harm. I'd rather just use clean 2-stroke in a Sohn adapter and add it as premix as well.
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Old 12-08-2010, 06:44 PM
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I use FP+ periodically. I go for a month with premix, then I do one tankful with 3oz of FP+ alone. I figure a cleaner will detract from the premix and premix may make the cleaner less effective. Hopefully I am guessing intelligently!

I will say I soaked a few different plug in straight cleaners for 24 hours and none of them otook anything off the plugs. I realize cumbustion adds a different dynamic, but I had them in straight cleaner. My cumbustion chamber only gets a small amount of cleaner spread over 4-5 days. I am not sold on cleaners - but do run top tier fuel in my wife's car and cleaners periodically in both.

The price of FP+ is actually low compared to Amsoil Performance Improver or Techron (the products I used before. And since I have the FP+ at home, I use it more regularly.

New question. I bought my car used and it had been decarboned 3 times in the 20K the PO had it (each time due to flooding). Do you think it would be good to do periodic heavy cleanings? I am at 35k now with new coils and wires. Plugs have 5k on them adn the car is running good, but only 183 hp.
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Old 12-08-2010, 06:45 PM
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I just ordered a bottle of FP Plus and a bottle of their LC20 for the oil. If you read up on BITOG, a website dedicated to automotive oils and additives, the products have really good results backed by oil analysis. It should be delivered next week and I'll keep you guys up to date on how it works on my 06 RX-8.
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Old 12-08-2010, 10:37 PM
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You cannot compare what works in a piston engine to a rotary (for the most part anyway). What ever you introduce in to the combustion cycle is being mixed with dirty engine oil (unless you run a SOHN) so...............
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Old 12-09-2010, 04:19 PM
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Well, I'm on page 71 right now... So it could be in the last 50 pages, but I am wondering something.

Has anybody done a used oil analysis before and after? When I thought about it, it sounded like a really good idea, but then when I really let it roll around in my head, it might not be as sound as I originally thought. Since all the oil in the combustion chamber is burned, premix or not probably wouldn't show up in a UOA.

What do you guys think? Would it even be a valid test to do? I imagine if you could keep as much the same between two oil changes, it would be an interesting thing to try either way...
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Old 12-09-2010, 04:24 PM
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Originally Posted by Beodude
Well, I'm on page 71 right now... So it could be in the last 50 pages, but I am wondering something.

Has anybody done a used oil analysis before and after? When I thought about it, it sounded like a really good idea, but then when I really let it roll around in my head, it might not be as sound as I originally thought. Since all the oil in the combustion chamber is burned, premix or not probably wouldn't show up in a UOA.

What do you guys think? Would it even be a valid test to do? I imagine if you could keep as much the same between two oil changes, it would be an interesting thing to try either way...

Two separate systems. If the two are mixing at high levels then you have bigger problems than needing premix.
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Old 12-09-2010, 04:44 PM
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Yeah, that's what I was thinking. It seemed like a good idea at first (I was thinking more of a piston engine when the idea popped in my head), but after a second I figured it wouldn't matter.

Still, I might give it a try some day....
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Old 12-09-2010, 06:03 PM
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Originally Posted by nycgps
I just feel that there is no point in mixing with funny/unknown stuff. Idemitsu works fine, I will stick with that only.
Originally Posted by robrecht
I stopped using FP+ after two users I know needed new engines. In and of itself that doesn't really prove anything because so many people have needed new engines, maybe as high as 25%. It sounds good in theory, ie, the whole idea of converting carbon to a graphite lubricant, but there's no real long-term evidence proving it works any better than 2-stroke and doesn't cause any potential harm. I'd rather just use clean 2-stroke in a Sohn adapter and add it as premix as well.
Noted on both accounts
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Old 12-11-2010, 05:20 PM
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Not sure if this will help anyone, or if there was any point in doing this, but I just wanted to see for myself exactly what it all looks like and how it all pours out:

Idemitsu


Idemitsu with FP+ (Photo taken after 1 minute of FP+ add)


Idemitsu with FP+ mix (Photo taken after 10 seconds of mixing with plastic fork)


Idemitsu with FP+ mix After Pour and Flush (Flushed 4 times with cold water)


[b]Amsoil Saber Pro/[b]


Amsoil Saber Pro w/ FP+ Add (Photo after 1 minute)


Amsoil Saber Pro w/ FP+ Mix (Photo after 10 seconds mixing w/ plastic fork)
]

Amsoil Saber Pro w/ FP+ Mix After pour and flush (Flushed 4 times with cold water)
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Old 12-11-2010, 05:26 PM
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Originally Posted by paimon.soror
Idemitsu with FP+ (Photo taken after 1 minute of FP+ add)

]
This pic may explain a few things ....

Good work .
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Old 12-11-2010, 05:45 PM
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Looks bad, but explain what you are thinking?

With the Amsoil being darker, is it just hiding the same effect?

I decided a while back not to mix cleaner and lube. I use cleaner once in a while with no premix for that tank.
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Old 12-11-2010, 06:31 PM
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Yea sorry about the amsoil pic ...if anyone has a better idea for that one let me know...just too dark
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Old 12-11-2010, 06:44 PM
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In person does the Amsoil have the same "crackled" appearance?
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Old 12-11-2010, 06:50 PM
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The flash on with a piece of white paper behind might reflect more light through the amsoil one.
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