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Can using TC-W3 lower octane and cause issues? #4063190 04/09/16 10:52 AM
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SumpChump Offline OP
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Mixing it at 1oz. Per 5gallons 91 octane premium. Can it lower octane notably and cause issues in motors that do best at 91 or is it insignificant?

Re: Can using TC-W3 lower octane and cause issues? [Re: SumpChump] #4063202 04/09/16 11:08 AM
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What is "TC-W3"?

Re: Can using TC-W3 lower octane and cause issues? [Re: SumpChump] #4063208 04/09/16 11:24 AM
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You remember what high octane means right? Means it's harder to self detonate

Unless the additive was something delivered to you by the bomb squad because its super volatile they all are going to raise octane very slightly or have no effect. Very slightly is like 91 to 91.2 using a whole bottle (advertised as 2 points on the bottle).

Last edited by raytseng; 04/09/16 11:25 AM.
Re: Can using TC-W3 lower octane and cause issues? [Re: SumpChump] #4063221 04/09/16 11:40 AM
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I was told clearly that the 2 stroke oil lowers octane.

Re: Can using TC-W3 lower octane and cause issues? [Re: SumpChump] #4063228 04/09/16 11:46 AM
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beanoil Offline
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Originally Posted By: SumpChump
I was told clearly that the 2 stroke oil lowers octane.

Not at 1 ounce in 5 gallons.

Re: Can using TC-W3 lower octane and cause issues? [Re: beanoil] #4063236 04/09/16 11:55 AM
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abycat Offline
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Originally Posted By: beanoil
Originally Posted By: SumpChump
I was told clearly that the 2 stroke oil lowers octane.

Not at 1 ounce in 5 gallons.


yeah I agree.


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Re: Can using TC-W3 lower octane and cause issues? [Re: SumpChump] #4063288 04/09/16 12:50 PM
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Lately, I have been dosing around 3 ounces per 5 gallons with no issues. SL2


Master the 1000 yard stare

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Re: Can using TC-W3 lower octane and cause issues? [Re: beanoil] #4063324 04/09/16 01:34 PM
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demarpaint Offline
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Originally Posted By: beanoil
Originally Posted By: SumpChump
I was told clearly that the 2 stroke oil lowers octane.

Not at 1 ounce in 5 gallons.


Exactly, if it does lower it I'd like to see someone able to measure the reduction at that rate.


God Bless Our Troops

Re: Can using TC-W3 lower octane and cause issues? [Re: demarpaint] #4063488 04/09/16 03:48 PM
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SumpChump Offline OP
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Originally Posted By: demarpaint
Originally Posted By: beanoil
Originally Posted By: SumpChump
I was told clearly that the 2 stroke oil lowers octane.

Not at 1 ounce in 5 gallons.


Exactly, if it does lower it I'd like to see someone able to measure the reduction at that rate.


Sweet thanks guys , here goes nuthin.

Re: Can using TC-W3 lower octane and cause issues? [Re: SumpChump] #4063954 04/10/16 02:05 AM
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I use it in plenty of high-compression engines, and have recorded no additional incidences of pre-ignition events, reductions in timing, or performance. Put it in, and stop worrying. thumbsup


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Re: Can using TC-W3 lower octane and cause issues? [Re: DoubleWasp] #4063958 04/10/16 02:21 AM
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Originally Posted By: DoubleWasp
Put it in, and stop worrying. thumbsup
But use protection!

Re: Can using TC-W3 lower octane and cause issues? [Re: SumpChump] #4064072 04/10/16 06:42 AM
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A data point of 1.

I have a turbocharged, high boost 4 cylinder car with a stand alone engine management system. I record knock events.

When I was running a variable vane turbo, I would add plenty of synthetic two stroke oil (about 100 to 1) in an attempt at unsticking the carboned up variable vanes. It did work, by the way. I'd drive to work at low power and enough oil would coat the vanes to unstick them.

I never noticed any additional knock events, once the vanes free'd up. Generally about 4 knock events per pull.


People who count on their fingers should maintain a discreet silence.
Re: Can using TC-W3 lower octane and cause issues? [Re: SumpChump] #4064080 04/10/16 06:51 AM
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nice data point Cujet.

by definition, it must lower the octane rating...but again, what's measurable to the average punter is limited to onset of knock events, not a research engine with the ability to blend ISO-octane and N-Heptane at 0.1 increments ?

Re: Can using TC-W3 lower octane and cause issues? [Re: Cujet] #4064170 04/10/16 08:42 AM
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SumpChump Offline OP
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Originally Posted By: Cujet
A data point of 1.

I have a turbocharged, high boost 4 cylinder car with a stand alone engine management system. I record knock events.

When I was running a variable vane turbo, I would add plenty of synthetic two stroke oil (about 100 to 1) in an attempt at unsticking the carboned up variable vanes. It did work, by the way. I'd drive to work at low power and enough oil would coat the vanes to unstick them.

I never noticed any additional knock events, once the vanes free'd up. Generally about 4 knock events per pull.


Thank you, very interesting read. And it seems according to reading elsewhere that it is a very nice lubricant which makes sense of course.

Re: Can using TC-W3 lower octane and cause issues? [Re: SumpChump] #4069040 04/15/16 02:36 AM
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Tc-w3 flash point is a important thing? How is better, low or high flash point? or no matter?

I buy one bootle of Castrol Outboard 2T (mineral low flash), and another one of Total Neptuna Bio-jet 2T (synthetic with very high flash). I think my car run better with Castrol Mineral low flash, is it possible flash point made diference?

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