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Sohn Adapter and Pre mix

Old 10-03-2018, 11:18 AM
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I used to use royal purple when i first started pre mixing with the adapter. But it doesn't really matter to much, now I'm just using Walmart 2 stoke.
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Old 10-03-2018, 12:12 PM
  #27  
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Old 10-03-2018, 05:15 PM
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Originally Posted by moneypitz View Post



what type of 2stroke do you use in australia? idemitsu is hard to come by here!! sorry new to club Sohn adapter on its way just want to know what to fill the tank with when i install it.
which state ? I use Amsoil Interceptor ATM

Trying this next can get in bulk cheap

https://www.silkolene.com/motorcycle...s/comp-2-plus/





Last edited by Sydo; 10-03-2018 at 05:40 PM.
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Old 10-03-2018, 06:13 PM
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Yeah, that Fuchs looks really good; it's FC/FD/TC, and claimed to be low smoke and clean burning.

I fill gas when it needs 8 gallons and put 4 oz. of Mobil 1 2T which is not made anymore, but I'd run this.

Car runs great after 35k miles and 11.5 years.

My 6 speed auto never used much more oil than a piston car.

Don't trust your sohn, put 1/2 oz in gas , also.

That makes sure.

Last edited by REDRX3RX8; 10-03-2018 at 06:16 PM.
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Old 10-03-2018, 06:56 PM
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Old 10-03-2018, 08:40 PM
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Originally Posted by Sydo View Post


which state ? I use Amsoil Interceptor ATM

Trying this next can get in bulk cheap

https://www.silkolene.com/motorcycle...s/comp-2-plus/




iím in Sydney NSW
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Old 10-03-2018, 10:42 PM
  #32  
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Your cheapest bet is FD-rated Citgo 2-stroke premix oil at Menards. $16.99 gets your the 4 qt bottle.
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Old 10-07-2018, 09:14 PM
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thanks for the help i can get this stuff pretty close to me, failing that it seems so long as iím using a high grade/clean oil thatís really what counts.
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Old 10-08-2018, 11:58 AM
  #34  
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For those pre-mixing, I've been trying to find the cleanest/quickest option for pre-mixing before fuel fill-ups. For $8 I found an oil spout that I can attach to the current quart I'm driving around with and seal up, keeping messes to a minimum. It has a long clear tube so that I can monitor the fluid flow and assure it is going into the fuel tube instead of the side of my car and is flexible for easy storage.

https://www.walmart.com/ip/Trans-And...waAg0VEALw_wcB

I found a reference online through Wal-Mart, but I bought mine at O'Riellys and I'm sure any other auto parts store will have them as well.
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Old 10-08-2018, 12:51 PM
  #35  
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I personally just use Rotary Bum bottles.

Drive until the fuel light comes on, dump a bottle in, and done.
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Old 10-09-2018, 07:29 AM
  #36  
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I just use a Lucas oil bottle (graduated on one side) and carry a roll of paper towels in the trunk.
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Old 10-09-2018, 12:07 PM
  #37  
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Those bottles tend to leak. I once had a 1L Peznnoil oil bottle sitting in my trunk organizer. The lid was stripped and undid itself, which made a big mess. The Rotary Bum bottles never leaked, and if their lids break(not often, but it can happen; just don't caveman it), just shoot them an email and they will give you new ones(shipping is free for the States and like $5 for Canada).

It's also better for more precise measurements. Don't have to mess around with the 1L bottle at the gas station.
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Old 10-09-2018, 12:27 PM
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The RotaryBum kit looks pretty good.
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Old 10-09-2018, 01:06 PM
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Originally Posted by furansu View Post
The RotaryBum kit looks pretty good.
I didn't get the kit with black cases, just the bottles. I do like that case, though.

I have 6 bottles right now, 2 for premix and 4 for engine oil. The premix bottles go in the straps on the side of the trunk organizer, while the engine oil bottles go in a cut cereal box in the trunk organizer. Works for me.

Some people also out them in the rear console container.
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Old 10-09-2018, 02:22 PM
  #40  
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I bought a bunch of these several years ago and they are still going strong.
https://www.specialtybottle.com/alum...shed/8oz-alum8
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Old 10-09-2018, 07:53 PM
  #41  
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Originally Posted by UnknownJinX View Post
Those bottles tend to leak. I once had a 1L Peznnoil oil bottle sitting in my trunk organizer. The lid was stripped and undid itself, which made a big mess. The Rotary Bum bottles never leaked, and if their lids break(not often, but it can happen; just don't caveman it), just shoot them an email and they will give you new ones(shipping is free for the States and like $5 for Canada).

It's also better for more precise measurements. Don't have to mess around with the 1L bottle at the gas station.
I have it sitting on top of a folded hand towel. No leaks in 7 years. Not sure precision is really a thing here.
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Old 10-10-2018, 10:23 AM
  #42  
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Iíve been using Idemitsu. The 4-oz. markings embossed on the side of the bottle are the only measuring tool I need. Piece of cake.
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Old 12-02-2018, 10:32 PM
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How much do you guys premix in gas after adapter
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Old 12-02-2018, 10:44 PM
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Originally Posted by Littledishman View Post
How much do you guys premix in gas after adapter
The same is before. The adapter and premix have 2 different purposes
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Old 03-15-2019, 09:30 AM
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Just a note I heard about recently regarding the early SAAB 2 stroke engines. The original Sabb engine, a 2 cylinder pre-mix 2 stroke was developed from the DKW 2 stroke as I understand. In any event prior to an oil pump being installed in the late 1950s as the engine was a pre-mix design some problems were noted due to oil starvation from the premix caused by coasting the engine with the throttle closed (say going down a long hill) at high rpm. As the throttle was closed, not enough oil was delivered to the crankcase and this caused some damage. I wonder whether or not the same sort of problem might affect the rotary in similar circumstances if those engines were modified for just a pre-mix.
Fot myself I have elected to add a pre-mix in a 600:1 ratio using Stihl chainsaw oil. The original oil pump of course has not been modified. Of course, it can be argued that 600:1 is of negligible importance, but still, a little oil is always delivered in addition to the oil pump.

Regardless, given the potential for pre-mix oil starvation as outlined above, is it wise to go to pre-mix only in the RX7/8?
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Old 03-15-2019, 10:25 AM
  #46  
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Chainsaw oil is also the wrong oil. I wouldn't disable the OMP, it's a good system, just feed it better oil. It's also complementary to premixing.
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Old 03-15-2019, 11:15 AM
  #47  
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Originally Posted by Loki View Post
Chainsaw oil is also the wrong oil. I wouldn't disable the OMP, it's a good system, just feed it better oil. It's also complementary to premixing.
I think he is talking about the 2-stroke oil they sell.

And 1:600 is too little to do much. Usually 1:250 is the norm for daily driven cars.
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Old 03-15-2019, 12:02 PM
  #48  
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We have two OMP maps.... one is load based and the other is pure RPM. Between those two I think the scenario you mention is covered --- and can be tweaked with EMS software.
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Old 03-15-2019, 03:05 PM
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Stihl would argue its good oil; A chainsaw typically revs to 15,000 rpm. Their oil is designed to burn clean.
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Old 03-15-2019, 03:11 PM
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Yes, of course it's the 2 stroke premix oil; (certainly not chain oil). I always liked the absolutely clean internal parts in a chain saw carburetion system and always so slick and lubricated. I will never disable the OMP.
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