Can I use Protek-R in my Sohn oil metering pump?
I bought my RX-8 used and it has the Sohn oil metering pump. The previous owner has been running Royal Purple 2 cycle synthetic oil in it. I bought some Protek-R fuel additive from Pettit Racing to run in the gas tank for added protection.
Can I use the Protek-R in the Sohn metering pump instead of the RP 2-cycle oil? thanks! |
What are the specs on the Protek-R? If it is a 2-cycle oil that's TCW rated - then no.
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Is it liquid? If so, yes.
Should you? No idea. I prefer Lucas Synthetic 2-cycle Snowmobile oil because it meets all the current standards. https://lucasoil.com/products/2-cycl...snowmobile-oil |
I used it for a long time. Its good stuff in the sense that my engine is still alive.
Its Pettit's rebrand of Klotz Techniplate, which is itself good oil for 2 stroke kart applications. |
I have been, cannot tell you if that's been a good or bad idea. No obvious issues, but its an engine that was likely down on power before, and remains down on power.
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Originally Posted by Loki
(Post 4893527)
I used it for a long time. Its good stuff in the sense that my engine is still alive.
Its Pettit's rebrand of Klotz Techniplate, which is itself good oil for 2 stroke kart applications. Do you run it in both the Sohn metering pump and as a pre-mix in the gas tank? |
Originally Posted by wannawankel
(Post 4893513)
What are the specs on the Protek-R? If it is a 2-cycle oil that's TCW rated - then no.
What is a TCW rating? |
LMGTFY
These are all the current highest 2-stroke ratings from various oil grading companies (JASO, ISO, API). If you see any of these on the bottle label, you're good to go. JASO FD ISO GD (sometimes listed as "EGD") API TC TCW (sometimes listed TC-W and then a number on the end) is for marine applications. It's got a different additive package that's designed to be safer for aquatic ecosystems and it doesn't work as well for our uses. |
Would it make more sense to ask Pettit rather than get opinions here from people who have no more idea than yourself?
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Originally Posted by REXTurboS
(Post 4893531)
Do you run it in both the Sohn metering pump and as a pre-mix in the gas tank?
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Originally Posted by Loki
(Post 4893564)
Yes. I find it expensive though. Used it for a couple years then switched to Klotz then Lucas. Then Lucas disappeared for some reason so I run Mystik JASO FD oil. Was thinking to go back to Klotz.
This may be a dumb question, but did you just fill the Sohn tank with the different oil? I’m guessing they are all interchangeable and mixable. I figure I’ll wait until the Royal Purple 2-cycle oil gets low in the tank and I’ll just fill it up with the Protek oil. Thanks for all the responses. Rotaries are completely new to me and quite a different experience compared to NA and turbos which I know well. |
What did Pettit tell you?
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They told me it was fine, but I like to get responses from RX-8 owners as well to get an unbiased opinion/answer.
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You won't get unbiased responses from anybody. Everybody is biased in favor of their chosen solution.
That's why I laid out the specifications you should look for. |
I don’t believe Pettit would tell you it’s ok just to sell you some oil and also ruin your engine. They have more informed experience for it than likely anyone else here.
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is idemitsu premix good to use with sohn adapter?
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It's fine. Tons of people use it and nobody has shown a failure mode that can be attributed to Idemitsu.
I don't think it's the be-all/end-all that some do but the difference between it and whatever the objective "best" happens to be will be unimportant. I used it. It was fine. I switched to Lucas Synthetic Snowmobile 2-cycle and that was fine, too. Think of it like the difference between motor oils for street cars with reasonable OCI: The difference between the "best" and "worst" of any oil that meets minimum specs is tiny compared to the the difference between "worst" of min spec and not changing the oil at all (or using a completely out-of-spec product). |
i just thought that since it says rotary premix on the bottle, then it's designed for it. but then again, i'm not using it in premix form, i'm using it for oil injectors. i also use klotz techniplate for premix since it's e85 compatible.
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Premix ration if the omp fails
Dear friends
what is the perfect ratio of premix when the omp fails |
The car won't let you go over 3000rpm if the OMP fails, so there is no ratio, you have to fix whatever is broken. If you need troubleshooting you can start a new thread in the new members section.
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not sure if he meant specifically electronic failure. i have mine still plugged in and attached with no shaft or lines and premixing very heavy only at the moment until i can get a tank and adapter
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Originally Posted by Loki
(Post 4951260)
The car won't let you go over 3000rpm if the OMP fails, so there is no ratio, you have to fix whatever is broken. If you need troubleshooting you can start a new thread in the new members section.
instead of fixing it I bought engine from Japan but unfortunately the engine received but for the previous model and has a different engine ecu so I manage to connect the engine to my old ecu everything works fine but the only thing that didn’t work is the OMP 🤦 anyone have advice what to do and if I bring the R3 OMP it can be fitted to the previous model engine or not please let me know what to do to solve this nightmare |
Oh. Yeah that's kind of a thing. You can't run a series 1 engine with a series 2 ECU. There's not really any way to connect the EMOPs. You could try to hack something together to fool the ECU to pretend the EMOPs are there, but it's not a well explored area. It might be easier and cheaper to buy the right engine believe it or not.
But otherwise if all you can do is premix, aim for around 150:1 |
I agree with the above. But if that is your only option you have rendered your car a 2 stroke because lack of omp.
If that’s the case and a new correct year engine is not in the cards. I would mix to the oils you choose specs. If you run amsoil 100:1 run it at 100:1. If a brand that says 50:1 then do that. All oils have a mix ration based on the oil not the engine or machine. Hence why I would look at it as any other two stroke and mix According to oil. Just to be safe. Seems rotaries need less oil than piston 2 stroke but I would run on the safe side. |
Originally Posted by Loki
(Post 4951339)
Oh. Yeah that's kind of a thing. You can't run a series 1 engine with a series 2 ECU. There's not really any way to connect the EMOPs. You could try to hack something together to fool the ECU to pretend the EMOPs are there, but it's not a well explored area. It might be easier and cheaper to buy the right engine believe it or not.
But otherwise if all you can do is premix, aim for around 150:1 |
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