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Gas/Oil Premix Thread

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Old Dec 15, 2010 | 05:56 PM
  #3001  
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From: Somewhere in 3rd gear
Originally Posted by PhillipM
If the particle size is small enough and it's mixed properly, yes, I was told by Silkolene that it can start to settle out after 6 months though (as it's rarely mixed perfectly).
Kinda what I figured, nothing is ever really perfect is it?
Old Dec 15, 2010 | 07:10 PM
  #3002  
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Old Dec 15, 2010 | 07:28 PM
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Old Dec 15, 2010 | 08:45 PM
  #3004  
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Yeah, I just add the whole quart to my tank...

psh 32 fluid ounces should help...

Cant wait till my CAT gives out...

Old Dec 16, 2010 | 01:20 PM
  #3005  
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Originally Posted by Dirt_Nasty
I would assume that emulsification is the same for oil as it is for dressing and that would mean that it should never seperate if done properly. I could be mistaken, but I would assume the word means the same thing.
No, emulsions are mixes of 2 incompatible liquids. Like oil and water. Typically this requires an "emulsifying agent". For example, mayonnaise is an emulsification of oil and vinegar. The emulsifying agent is traditionally egg yolk. But we're not interested in creating an emulsion with pre-mix.

An oil-based premix and gasoline are compatible fluids that should be soluble in each other. This isn't an emulsion, but a solution. Once mixed they should stay mixed indefinitely and without any special additive agent.

But back to the water issue -- what is the purpose of "flushing" the glass with water? And then the second oil appears to have been added to the glass still wet with water. This appears to be the cause of the "crackly" appearance. But then again we would never expect oil to mix with water. So what is the point?
Old Dec 16, 2010 | 01:34 PM
  #3006  
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From: Between Cones
Originally Posted by Nubo
But back to the water issue -- what is the purpose of "flushing" the glass with water? And then the second oil appears to have been added to the glass still wet with water. This appears to be the cause of the "crackly" appearance. But then again we would never expect oil to mix with water. So what is the point?
You are right, made the noob mistake of using a glass that I had just washed. I need to redo that test anyway mainly because it is too dark to see any information from the fluid.

As far as why i flushed...well i guess I was experimenting to see what residue was left behind. Would it be better to just drain it without flushing?
Old Dec 16, 2010 | 01:36 PM
  #3007  
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Originally Posted by Nubo
But back to the water issue -- what is the purpose of "flushing" the glass with water? And then the second oil appears to have been added to the glass still wet with water. This appears to be the cause of the "crackly" appearance. But then again we would never expect oil to mix with water. So what is the point?
I'm with you but it must have made perfect sense to the early responders.
Old Dec 16, 2010 | 02:37 PM
  #3008  
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Nubo,

+1 You know it, man!
Old Dec 16, 2010 | 04:05 PM
  #3009  
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From: Somewhere in 3rd gear
Originally Posted by Nubo
No, emulsions are mixes of 2 incompatible liquids. Like oil and water. Typically this requires an "emulsifying agent". For example, mayonnaise is an emulsification of oil and vinegar. The emulsifying agent is traditionally egg yolk. But we're not interested in creating an emulsion with pre-mix.

An oil-based premix and gasoline are compatible fluids that should be soluble in each other. This isn't an emulsion, but a solution. Once mixed they should stay mixed indefinitely and without any special additive agent.
I was confused by phillipm refering to the mixture as an emulsification, as I thought that that they were two compatible liquids. This is why I was speaking very generally about emulsification, not about premix. Thanks for clearing that up.
Old Dec 16, 2010 | 04:35 PM
  #3010  
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Sorry, me using the wrong word and confusing things!
Old Dec 17, 2010 | 01:00 AM
  #3011  
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Originally Posted by paimon.soror
You are right, made the noob mistake of using a glass that I had just washed. I need to redo that test anyway mainly because it is too dark to see any information from the fluid.

As far as why i flushed...well i guess I was experimenting to see what residue was left behind. Would it be better to just drain it without flushing?
Yeah you should be able to see residue, if any, once there's just a thin film left. Better yet, shake it up and drain it through a coffee filter. Might take a while if thick.
Old Dec 18, 2010 | 02:16 AM
  #3012  
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Here's a good experiment:

Get a 2 gallon gas can. Put 1 oz of Idemitsu in it, then put 2 gallons of gas in it direct from a fuel pump at the gas station. Notice that the nozzle practically sprays the fuel into the can. Imagine how well the oil & fuel mix based on that flow velocity & the churn in the can.

Now, if you are still unconvinced things are well mixed, go ahead and pour some in a glass and take a picture.

If it floats your boat, try the same thing with a FP+ & Idemitsu cocktail.

Last edited by GeorgeH; Dec 18, 2010 at 02:19 AM.
Old Dec 18, 2010 | 02:40 AM
  #3013  
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Originally Posted by GeorgeH
Here's a good experiment:

Get a 2 gallon gas can. Put 1 oz of Idemitsu in it, then put 2 gallons of gas in it direct from a fuel pump at the gas station. Notice that the nozzle practically sprays the fuel into the can. Imagine how well the oil & fuel mix based on that flow velocity & the churn in the can.

Now, if you are still unconvinced things are well mixed, go ahead and pour some in a glass and take a picture.

If it floats your boat, try the same thing with a FP+ & Idemitsu cocktail.
Already did ..Years ago..with what I use Amsoil Saber Pro.

I had a Clear container of 1 litre High Octane Petrol (sorry Gas), put in 4 mils of Saber Pro, the Oil dissipated VERY evenly with only the slightest of movement of 1 litre clear Gas bottle.

Cant speak of other products or cocktails (don't use them or fuel cleaners), however I am more than satisfied with my procedure of just dumping all Amsoil in Tank and then filling up. Once mobile then doing a few hard left right, left right movements with the car.

Anything more IMO is just overkill, unnecessary and soon a tiresome method.

Yes, mine is not perfect, but....has been fine for me for over 2 years.

Edit..
BTW..Have stored experiment for months with NO Separation.

Gas from bowser nozzle to car has to travel down 2 feet of pipe Before it reaches cars Fuel Tank(s), by that time the gas would be a even pour or stream entering tank inlet.

Last edited by ASH8; Dec 18, 2010 at 02:50 AM.
Old Dec 18, 2010 | 11:39 AM
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^100% agree. I do the petrol-can "experiment" all the time in the summer, since I need to keep a few gallons on hand for autocrossing (prefer to run with a light fuel load for the "big" races). Stuff mixes up just fine simply from the act of filling the gas tank.
Old Dec 18, 2010 | 05:51 PM
  #3015  
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scrubbing your tires just after you fill the tank also couldn't hurt the mixing of the solution.
Old Dec 18, 2010 | 06:50 PM
  #3016  
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Isn't that just part of our normal day?
Old Dec 19, 2010 | 10:32 AM
  #3017  
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So I've driven through 2 tanks of premixing with FP Plus from Lube Control. I use to premix with Royal Purple TCW-III. I've noticed the following improvements:
  • Better idle quality
  • Mileage has improved. I can drive about 280 miles per tank usually but with the FP Plus I hit 300 before I needed to refuel.
  • Starting when the car is cold is MUCH faster. 1-2 cranks is all it takes. With Royal Purple as a premix the engine started much slower, usually 3-4 cranks.
Overall, I'm really pleased with FP Plus. Also since its an upper cylinder lubricant I feel safe using it with every tank. Just don't overdose and make sure you follow the 1 OZ/ 10 gallon rule.
Old Dec 19, 2010 | 10:55 AM
  #3018  
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Given the very light consistensy of FP+, I don't think it is helping with your apex seals. I am sure it is a good cleaner and may help lubricate the fuel pump, but I think we need more than just our dirty sump oil libricating the apex seals - even if it starts a little harder. I just moved up to .75 oz Amsoil Saber Pro from .5. Batteries are cheaper than a rebuild.
Old Dec 19, 2010 | 11:23 AM
  #3019  
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Originally Posted by ganseg
....Batteries are cheaper than a rebuild.
I just put another battery in the trunk.
Old Jan 1, 2011 | 10:59 AM
  #3020  
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I am going to start a thread for expert discussion of this:
http://legendperformance.com/article5.asp
I am not an expert, but I am especially concerned about losing compression since I am using a synthetic (Amsoil Saber Pro). One of the big reasons I am using is is because I like that it is designed for use at 100:1. I am now using 200:1 because of some good advice here.

I wonder if the synthetic could be cleaned off with FP+ once a month?
Old Jan 1, 2011 | 11:03 AM
  #3021  
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Yeah I have put many of my thought about Legend oil in this thread. I've loved it for years.
Old Jan 1, 2011 | 11:10 AM
  #3022  
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Lucky you! Synthetic is higher quality and is probably JASO FD instead of FC. Any oil, synthetic or otherwise will burn up when driving hard.

That's why the engine keeps squirting more.

Most carbon on the seals is gasoline misfire related, not oil.

IMO that cleaners in the fuel should be used for cleaning the injectors as when your car doesn't idle stable, and the track day is for cleaning the carbon.

Last edited by REDRX3RX8; Jan 1, 2011 at 11:17 AM.
Old Jan 1, 2011 | 11:13 AM
  #3023  
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Saber Pro is JASO FC.
Old Jan 1, 2011 | 11:15 AM
  #3024  
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Originally Posted by ganseg
I am going to start a thread for expert discussion of this:
http://legendperformance.com/article5.asp
I am not an expert, but I am especially concerned about losing compression since I am using a synthetic (Amsoil Saber Pro). One of the big reasons I am using is is because I like that it is designed for use at 100:1. I am now using 200:1 because of some good advice here.

I wonder if the synthetic could be cleaned off with FP+ once a month?
Cleaned off? Its a premix. It lubricates for a short period and burns off. There is a reason you have to add it in every tank full.

Stop believing this synthetics don't burn crap useless people are perpetuating.

Also, ASP is full of detergents, there is no need for FP+, the only one I know of with more detergents is Amsoil Interceptor.

Just keep doing what you where doing, what you are currently using is right.

You know after all these gazillion pages, it almost seems like no one thinks to mention the one biggest problem (especially in the USA) for rotary engines. ETHANOL.

ITs a horribly destructive fuel. If you all should be scared of something its that useless government subsidized fuel. At 15% it could be very very bad for our engines.
Old Jan 1, 2011 | 11:19 AM
  #3025  
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Originally Posted by ganseg
Saber Pro is JASO FC.
Well, then, that's plenty good, and might even be great!


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