Gas/Oil Premix Thread
#2201
Lubricious
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Safe and beneficial are two different standards.
And again it boils down to opinions. I read what was out there, considered the experience level of the posters, and read some of the older-school information on RX7club.com as well. From all indications I could see, premixing doesn't appear harmful. Or, at least, I haven't come across any complaints that premix messed up an engine. So imho, as long as you stick with one of the generally accepted premixes and ratios, the issue of safety is fairly well assured.
As far as benefit, that's a little harder to assess. But, given the experience of longtime owners, racing teams and engine rebuilders I tend to believe it. Mazda has made several changes along the way that indicate that there was insufficient apex seal lubrication, at least with version 1 of the RX-8. These include multiple revisions to the PCM to increase oiling in various situations, and a redesign of the oil injection system in 2009.
If there was a "final answer", this thread wouldn't have run to 90 pages.
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#2203
Registered
"There is nothing wrong with incorrect or missing punctation on the Intertubes as long as you are typing in a really long and confusing way."
Somehow I knew all those many years studying ancient languages would come in handy some day.
#2204
I use MMO because it is readily available to me. Some use Amsoil Saber Pro and/or Interceptor. Others use Protek R or Idemitsu, which are specifically designed for rotaries. TBH, any high quality, low ash, low flash point, synthetic premix should work fine. Or at least be better than nothing at all.
#2205
Now that I read what I wrote, is MMO any of those other than a low flash point and maybe low ash? I think I just talked myself out of using MMO.
#2207
Super Moderator
I wish people would stop comparing MMO to Amsoil Saber Pro, because there is NO comparison.
One is a cheap "Mystery" product, the other is a High End 2 STROKE OIL with a VERY HIGH FLASH POINT.
Does anyone even know the flash point of MMO???..
THE POINT OF PRE-MIX IS YOU WANT THIS OIL TO LUBRICATE NOT INSTANTLY BURN OFF BECAUSE IT HAS A LOW FLASH/BURN RATE.
One is a cheap "Mystery" product, the other is a High End 2 STROKE OIL with a VERY HIGH FLASH POINT.
Does anyone even know the flash point of MMO???..
THE POINT OF PRE-MIX IS YOU WANT THIS OIL TO LUBRICATE NOT INSTANTLY BURN OFF BECAUSE IT HAS A LOW FLASH/BURN RATE.
#2208
Super Moderator
BTW, as you can see the Amsoil Interceptor for Marine- Snowmobile use has a lower flash point because these engines do not get as hot.
#2209
Registered
I wish people would stop comparing MMO to Amsoil Saber Pro, because there is NO comparison.
One is a cheap "Mystery" product, the other is a High End 2 STROKE OIL with a VERY HIGH FLASH POINT.
Does anyone even know the flash point of MMO???..
THE POINT OF PRE-MIX IS YOU WANT THIS OIL TO LUBRICATE NOT INSTANTLY BURN OFF BECAUSE IT HAS A LOW FLASH/BURN RATE.
One is a cheap "Mystery" product, the other is a High End 2 STROKE OIL with a VERY HIGH FLASH POINT.
Does anyone even know the flash point of MMO???..
THE POINT OF PRE-MIX IS YOU WANT THIS OIL TO LUBRICATE NOT INSTANTLY BURN OFF BECAUSE IT HAS A LOW FLASH/BURN RATE.
BTW, I have also heard some people mention some advantages of a lower flashpoint in a miscible premix, but I won't pretend to defend their views. Some of what people have said on both sides of this point seem to make sense as far as I understand the issues.
Last edited by robrecht; 01-26-2010 at 07:20 PM.
#2210
Nature vs. Nurture
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I just looked it up,
http://www.amsoil.com/storefront/atp.aspx
Seems ATP's detergents target "hard-carbon deposits".
and
http://www.amsoil.com/storefront/ait.aspx
Surprisingly Interceptor might be the better product for us here, it has even more detergents for carbon.
http://www.amsoil.com/storefront/atp.aspx
Seems ATP's detergents target "hard-carbon deposits".
and
http://www.amsoil.com/storefront/ait.aspx
Surprisingly Interceptor might be the better product for us here, it has even more detergents for carbon.
#2211
120,000+ miles tick tock
i tried to read threw alllllll the pages on here but couldnt find anything on castor 927, i hear all these good things about getting better gas millage but when i premixed i notices a drop in gas millage BUT better idle and rev
btw im using 10oz per FULL fill up, ....basically im wondering if i should use more or less when using a castor based oil compared to petroleum
also (and i skiped a few pages simply because there is wayyy to many lol) what about FI setup and premixing ?
btw im using 10oz per FULL fill up, ....basically im wondering if i should use more or less when using a castor based oil compared to petroleum
also (and i skiped a few pages simply because there is wayyy to many lol) what about FI setup and premixing ?
Last edited by FoxRacer600RR; 01-28-2010 at 12:48 AM.
#2212
Super Moderator
Don't use ANY CASTOR OILS...Period!
Then Read this PDF....
https://www.rx8club.com/attachment.p...3&d=1213419067
Then Read this PDF....
https://www.rx8club.com/attachment.p...3&d=1213419067
#2213
120,000+ miles tick tock
Don't use ANY CASTOR OILS...Period!
Then Read this PDF....
https://www.rx8club.com/attachment.p...3&d=1213419067
Then Read this PDF....
https://www.rx8club.com/attachment.p...3&d=1213419067
#2214
Super Moderator
I said to read the link...did you...NO..
Castor base oils do not mix with petroleum Fuels very well and they will Gunk/Carbon/Soot Up your Rotary engine very quickly...
Plus stuff up your injectors and Fuel pump...
READ IT...
Castor base oils do not mix with petroleum Fuels very well and they will Gunk/Carbon/Soot Up your Rotary engine very quickly...
Plus stuff up your injectors and Fuel pump...
READ IT...
#2216
Super Moderator
I give up...
#2220
120,000+ miles tick tock
haha.....il take ur word for it, it seems like the only thing bad about castor oil is the deposits left behind then....everything else seems better. now does that also mean that if the engine is ran hard that castor oil is ok due to the fact that it will "run it out" rather than have it build up in the combustion chambers ?
#2222
Nature vs. Nurture
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Don't use ANY CASTOR OILS...Period!
Then Read this PDF....
https://www.rx8club.com/attachment.p...3&d=1213419067
Then Read this PDF....
https://www.rx8club.com/attachment.p...3&d=1213419067
#2223
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Location: Montreal,QC
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Its not, it was used in the early 70's.
Leaving deposits behind is BAAD. WAY BAD.
Half the conversation in the gazillion page thread is about cleaners in detergents to get RID of the little bit of deposits that are left behind. Going to castor oils would increase that problem tremendously.
As the article mentioned, unless your ready to do an engine teardown OFTEN, dont use castor oils. Simple.
Oh... and you cant run your engine HARD ENOUGH to make it "run out". If racing engines that use it have to be tore down, it means it doesnt "run out".
Leaving deposits behind is BAAD. WAY BAD.
Half the conversation in the gazillion page thread is about cleaners in detergents to get RID of the little bit of deposits that are left behind. Going to castor oils would increase that problem tremendously.
As the article mentioned, unless your ready to do an engine teardown OFTEN, dont use castor oils. Simple.
Oh... and you cant run your engine HARD ENOUGH to make it "run out". If racing engines that use it have to be tore down, it means it doesnt "run out".
#2225
FoxRacer600RR.... really? really? I mean REALLY? There is a 90 page thread explaining all of this. If you even read the last couple of pages you would know the general does and don'ts. You sir have just boarded the