Alternative Fuels Discussion and Tech on using alternatives such as E85 or Hydrogen or other fuels and/or supplements to Gasoline in Rotary Engines

zero gum E85 premix

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Old 10-26-15, 10:18 PM
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Originally Posted by Rob XX 7
oh jeez here we go again lol


Well would you rather I lie? I'm here to share my experiences not hide them in favor of pride. Were going to revamp the car for next season as well, which includes a new engine. So I'll let you guys know what we find when we open her up
Old 11-04-15, 01:45 PM
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Thanks Aaron. Keep us updated.
Old 04-09-16, 06:08 PM
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Any updates on best premix oil options?
Old 05-17-17, 02:26 AM
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any update guys?

so far it seems like
Motul 800 Ester 2T synthetic will mix well with E85

what about Redline 2stroke alcohol?
Old 05-18-17, 09:06 PM
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Originally Posted by Alpine
any update guys?

so far it seems like
Motul 800 Ester 2T synthetic will mix well with E85

what about Redline 2stroke alcohol?
The motul mixed but left less... but left the same gooey crap.

The redline 2 stroke alcahol is The only premix that didn't leave the crap👍
Old 05-19-17, 12:02 PM
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I seem to recall Evinrude Johnson being one option as well.
Old 08-11-17, 04:31 PM
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i just came across this today

Top Lube for E85?

it even comes in different scents !
UPPER CYLINDER LUBRICANTS

seems like this will work much better than the 2stroke oils.
Old 08-16-17, 12:25 PM
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Originally Posted by Alpine
i just came across this today

Top Lube for E85?

it even comes in different scents !
UPPER CYLINDER LUBRICANTS

seems like this will work much better than the 2stroke oils.
If you read the comments on that article, Mike Kojima mentioned that although many teams were using top lube, the rotary FD teams (Mad Mike, Kyle Mohan, ect) were all still running Redline full synth 2-stroke oil as premix.
Old 08-16-17, 11:42 PM
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Originally Posted by Shainiac
If you read the comments on that article, Mike Kojima mentioned that although many teams were using top lube, the rotary FD teams (Mad Mike, Kyle Mohan, ect) were all still running Redline full synth 2-stroke oil as premix.

Not necessarily true.... I work right next to Mike Kojima. They just recently started using it scarcely. Worked for Mad Mike and we didn't run Ethanol ever. We were always on 109. So we ran Castro premix. No clue what Kyle Mohan runs.
Old 10-05-17, 07:25 PM
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So I was reading an article from last year where some seriously hardcore rotary racers in New Zealand swear by Castrol R30 for methanol and E85 pre-mix fuel use, including long term storage. It seems as though NZ is the only place you can actually purchase Castrol R30 any more. I thought that seemed a bit strange.
Old 02-23-19, 05:30 PM
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Just wondering if there are any updates on this? Are there any other premixes which work well and dont leave the sticky residue?
Someone mentioned that ethanol by nature leaves a sticky residue, is this correct? Or is it definitely the reaction with certain premixes that cause it?
Old 03-22-19, 12:05 PM
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im just wondering if the gummy residue actually caused any failures or premature wear?
local engine builder loves taking them apart and seeing that nice protective layer on there but some here said its no good
seems almost like opinions versus data and facts
Old 05-16-19, 02:44 PM
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I've had E85 premixed in Pennzoil Marine 2 stroke as well as Lucas semi synthetic. Both have stayed fully suspended since 5/12, however, there is a thin brown layer forming on the bottom. Could be bottle contamination, could be something else. Just throwing it out there.
Old 05-17-19, 10:39 AM
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I mixed Valvoline 2 stroke tc-w3 outboard oil with E85 and it stayed perfectly in suspension for a month until the whole jar evaporated.
But the potential problem was that my whole fuel system was super sticky. I only discovered this when installing a feed collector a month after premixing with this Valvoline with e85. Everything in the tank was extremely tacky. Previously I was using this premix with pump fuel and there was no stickiness.

Not sure if it's a coincidence or the reason, but just before this discovery I was getting some fuel pressure drop on WOT, and wondering if this tackiness may have been the cause somehow...
Old 05-17-19, 01:58 PM
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Originally Posted by mikey13b
I mixed Valvoline 2 stroke tc-w3 outboard oil with E85 and it stayed perfectly in suspension for a month until the whole jar evaporated.
But the potential problem was that my whole fuel system was super sticky. I only discovered this when installing a feed collector a month after premixing with this Valvoline with e85. Everything in the tank was extremely tacky. Previously I was using this premix with pump fuel and there was no stickiness.

Not sure if it's a coincidence or the reason, but just before this discovery I was getting some fuel pressure drop on WOT, and wondering if this tackiness may have been the cause somehow...
In a week, I'll check whatever is settling on the bottom of my bottles to see if its tacky at all.
Old 05-17-19, 05:10 PM
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I know for a fact Redline still makes an Alcohol-Safe Premix. 40504. You can get 12qts for around $237 shipped.
Old 05-18-19, 10:05 AM
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Originally Posted by RGHTBrainDesign
I know for a fact Redline still makes an Alcohol-Safe Premix. 40504. You can get 12qts for around $237 shipped.
I think you just can't get it in the gallon jug anymore.
Old 07-11-19, 08:44 PM
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what about redline 40505, isn't that a 2 stroke oil made for alcohol fuel?
Old 07-12-19, 09:23 AM
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I'm fairly certain the tar issue is not a premix related phenomenon, it's simply the low quality pump E85 that causes that.

Some pumps/stations will have more tar while others will have less; It seems to be dependent on the E85 mix (since the 15%-50% non-ethanol doesn't have many regulations and doesn't have to be necessarily be fuel at all) and the gas station tank condition.

This does not happen with barreled race E85 fuel. I would think any alcohol compatible premix is acceptable but I primarily use Maxima Castor 927 and Klotz Benol.

I would be glad to be wrong but the tar is documented in other cars that don't even use premix.

https://www.theturboforums.com/threa...tified.375934/
https://www.supraforums.com/forum/sh...Countermeasure
Old 07-12-19, 11:41 AM
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Originally Posted by Copeland
I'm fairly certain the tar issue is not a premix related phenomenon, it's simply the low quality pump E85 that causes that.

Some pumps/stations will have more tar while others will have less; It seems to be dependent on the E85 mix (since the 15%-50% non-ethanol doesn't have many regulations and doesn't have to be necessarily be fuel at all) and the gas station tank condition.

This does not happen with barreled race E85 fuel. I would think any alcohol compatible premix is acceptable but I primarily use Maxima Castor 927 and Klotz Benol.

I would be glad to be wrong but the tar is documented in other cars that don't even use premix.

https://www.theturboforums.com/threa...tified.375934/
https://www.supraforums.com/forum/sh...Countermeasure
I'm going to test one of the theories there and add toulene to a container of pump e85 and see if it dissolves the tar. If so, that would be the magic mix for me. Premix my premix before I mix LOL
Old 07-15-19, 07:04 PM
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Originally Posted by TonyStarkz
I think you just can't get it in the gallon jug anymore.
Still seem to be few places selling the RL 40505 1-Gal jug for around $80

only thing listed on the RL website is the safety data sheet for it, they seem to have gone full fubar ...

Last edited by TeamRX8; 07-15-19 at 07:15 PM.
Old 08-19-19, 10:35 AM
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Originally Posted by TonyStarkz
I'm going to test one of the theories there and add toluene to a container of pump e85 and see if it dissolves the tar. If so, that would be the magic mix for me. Premix my premix before I mix LOL
Wanted to edit the spelling of toluene for search purposes but I guess I caught it too late!
Old 09-04-19, 11:24 AM
  #73  
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no issues using Maxima Castor 927 and Maxima Formula K2. Because i had no issue, I recently switched to cheaper Klotz Techniplate

Full p-port,
Large turbo,
Mechanical Fuel

Driven a decent bit of street miles. Lots of revving/idling, dynoing, testing. And quite a good bit of rips. Its been about 1 year now. I've torn down the fuel system to have injectors cleaned/flowed, and they showed no signs of gumming.

The innards of the mechanical pump were clean as a whistle.

The only sign of gumming is inside the actual intake manifold runners/peripheral intake ports.

After reading, seeing, testing, inspecting, my thought is that the overlap is what causes the gumming. Mixing of exhaust gases with the alcohol, leaving behind a residue. And it doesn't appear to be much of an issue. In fact, I sometimes think it might be beneficial, leaving the internals of the engine coated for protection. At least alot of dirt bike guys claim this!

So far so good, so I'm going to stick to e85 full time!
Old 09-04-19, 04:20 PM
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Hell yeah, thanks for reporting back!
Old 03-03-20, 05:42 PM
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I emailed Redline with a few premix questions today. Their response:

"Thank you for contacting Red Line Oil, our products including the Two Stroke Alcohol Premix don't have a shelf life.
It is still available, we don't currently list it on our site but can be ordered by calling the office, 800-624-7958.
In a rotary engine using alcohol a mix of about 5/8 to ¾ ounce per gallon should be sufficient.
When mixing with gas in a rotary engine the Two Stroke Race Oil is used about 1 ounce per gallon."
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