Gas/Oil Premix Thread
#2801
Guys I think that there's too much debate about which premix to use.
I use any 2 stroke oil that i can find, if i stick to motul or similar brands is just because i know that they did fine in every 2stroker engine i had![Smilie](https://www.rx8club.com/images/smilies/smile.gif)
My only concern is about castrol's TTS line, lots of ashes. Reading the specs helps a lot so i generally stick to oils with low ash deposits and call it a day.
Valvoline has also got, like MANY other brands a line of premix oils for catalyzed bikes, a good bonus if you're still running with your catalyzer.
Other than that i once gave Todd ( Flashwing )a list of the oils I tried but i dunno if he still has it somewhere.
Avoiding aviation\motorboat oils is the only little extra precaution i'd take, those engines are meant to run at fixed rpms for most or their lives. We see varying speeds and loads, exact same as an engine bike![Smilie](https://www.rx8club.com/images/smilies/smile.gif)
Considering that you don't have to lube the bearings or the engine internals but just the housings\seals with it there's really no point in wasting money!
Bottom line: just get the right 2 stroke oil (for catalytic bikes\non cat) and you'll be fine
I use any 2 stroke oil that i can find, if i stick to motul or similar brands is just because i know that they did fine in every 2stroker engine i had
![Smilie](https://www.rx8club.com/images/smilies/smile.gif)
My only concern is about castrol's TTS line, lots of ashes. Reading the specs helps a lot so i generally stick to oils with low ash deposits and call it a day.
Valvoline has also got, like MANY other brands a line of premix oils for catalyzed bikes, a good bonus if you're still running with your catalyzer.
Other than that i once gave Todd ( Flashwing )a list of the oils I tried but i dunno if he still has it somewhere.
Avoiding aviation\motorboat oils is the only little extra precaution i'd take, those engines are meant to run at fixed rpms for most or their lives. We see varying speeds and loads, exact same as an engine bike
![Smilie](https://www.rx8club.com/images/smilies/smile.gif)
Considering that you don't have to lube the bearings or the engine internals but just the housings\seals with it there's really no point in wasting money!
Bottom line: just get the right 2 stroke oil (for catalytic bikes\non cat) and you'll be fine
![Smilie](https://www.rx8club.com/images/smilies/smile.gif)
#2803
Uhm... I only see a comparison between SEALS (how would the esmeril ones hold up?
) and not between the same seal run with or without premix ![Frown](https://www.rx8club.com/images/smilies/frown.gif)
It would be cool to see the difference between 2 OEM seals, one ran with premix and one without. A third one with "real life" percentages would be the extra icing!
![Smilie](https://www.rx8club.com/images/smilies/smile.gif)
![Frown](https://www.rx8club.com/images/smilies/frown.gif)
It would be cool to see the difference between 2 OEM seals, one ran with premix and one without. A third one with "real life" percentages would be the extra icing!
#2806
![Smilie](https://www.rx8club.com/images/smilies/smile.gif)
Even a piston ring shows wear signs after 2 or 4 race weekends! As I said a cool test would be a 50.000km durability one in a premix vs non premix vs heavy premix contest!
Moreover, what if they premixed to a 100:1 ratio because they were running without OMPs? The pics are pretty clear but as stated why were they even premixing AT ALL if it is so useless? =)
#2807
Registered
iTrader: (7)
http://www.rotaryresurrection.com/1s...ion_remov.html
remove stock oil metering system **to allow user to run 2-cycle premix in the gas at all times**. The benefit to this is a cleaner engine externally, less oil consumption by the engine, and cleaner 2-cycle premix burning internally (necessary to lubricate the apex seals, which is what the OMP system did with crankcase oil) leaves fewer deposits on the internals and probably does a better job of even lubrication internally. Note that you will have to religiously pour in premix with your gas, without fail, after removing the system. OMP, rod, oil lines, vacuum lines and oil injectors get removed and blocked off.
remove stock oil metering system **to allow user to run 2-cycle premix in the gas at all times**. The benefit to this is a cleaner engine externally, less oil consumption by the engine, and cleaner 2-cycle premix burning internally (necessary to lubricate the apex seals, which is what the OMP system did with crankcase oil) leaves fewer deposits on the internals and probably does a better job of even lubrication internally. Note that you will have to religiously pour in premix with your gas, without fail, after removing the system. OMP, rod, oil lines, vacuum lines and oil injectors get removed and blocked off.
#2810
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Not the main reason to premix, but it's certainly a nice little bonus:
![Name: CIMG0003-1.jpg
Views: 85
Size: 33.7 KB](https://www.rx8club.com/attachments/series-i-tech-garage-22/257839d1501291695-gas-oil-premix-thread-cimg0003-1.jpg)
I haven't cleaned my exhaust tips in two months now. On my last RX-8 (that had the same exhaust but I didn't premix) those things would be black around the tip in a matter of days.
I love it!
![Name: CIMG0003-1.jpg
Views: 85
Size: 33.7 KB](https://www.rx8club.com/attachments/series-i-tech-garage-22/257839d1501291695-gas-oil-premix-thread-cimg0003-1.jpg)
I haven't cleaned my exhaust tips in two months now. On my last RX-8 (that had the same exhaust but I didn't premix) those things would be black around the tip in a matter of days.
I love it!
#2814
I use Idumitsu about 4 to 8oz a tank, I just found this on the rx7club
http://www.rx7club.com/showthread.ph...e+motor+whales
http://www.rx7club.com/showthread.ph...e+motor+whales
#2818
LOL, I also heard the fumes replace Ozone, can be used for seasoning, and make your exhaust sound better, not to mention the 20HP gain.
left=premix no OMP, right=OMP no premix
left=premix no OMP, right=OMP no premix
![](https://img140.imageshack.us/img140/7898/004ik.jpg)
Last edited by FazdaRX_8; 07-03-2010 at 11:12 AM.
#2820
WENTGERMAN
iTrader: (6)
I bought the car with 96k. Mazda wont release the car since I wasn't the owner of it then. I did a carfax on it and it was a dealer car whatever that means.
Anyway I first started premixing with MMO at 112k? I think I'm not really sure.
Then I got a compression check around 122k and failed that so I decided to start premixing Idemitsu and used that as a crutch until I had the funds for the rebuild kit.
I pulled the engine at 124k and began rebuilding it.
Here is my rebuild thread there's tons of information from some of the leading experts on this site.
https://www.rx8club.com/series-i-tech-garage-22/my-engine-rebuild-195276/page22/
Anyway I first started premixing with MMO at 112k? I think I'm not really sure.
Then I got a compression check around 122k and failed that so I decided to start premixing Idemitsu and used that as a crutch until I had the funds for the rebuild kit.
I pulled the engine at 124k and began rebuilding it.
Here is my rebuild thread there's tons of information from some of the leading experts on this site.
https://www.rx8club.com/series-i-tech-garage-22/my-engine-rebuild-195276/page22/
#2822
#2824
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Location: Montreal,QC
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