Gas/Oil Premix Thread
03-29-2008, 07:29 PM
#1076
Registered User
Hello RX-8 owners. I'm new to your club. I've owned my 2007 RX-8 for 1 month now and have already put 2800 miles on it. I've been reading this thread with great interest. It's now about 3 years running and I think I've read nearly every post. Seems that the premix debate was pretty hot at once and now this thread appears to be posted in by those who premix and those who are inquiring about it, like myself.
First, let me say the originator of this thread, OMCWankel, did premix starting at 800 miles. I noted he discontinued posting in this thread after stating he'd post his engine oil analysis results using a product from LC. So I tracked down his posts and learned his RX-8 died at 49,000 miles, an early death for sure. He sounded like a maintenance enthusiast, so it'd be safe to assume his died for reasons other than lack of maintenance.
After tracking him through his other posts, I came to the conclusion that this thread needs a compilation of results. May I suggest that a method be agreed upon so that we can compile and make some sense of this information. Can we compare fuel economy of all members who use premix and those who don't, for example, for starters?
First, let me say the originator of this thread, OMCWankel, did premix starting at 800 miles. I noted he discontinued posting in this thread after stating he'd post his engine oil analysis results using a product from LC. So I tracked down his posts and learned his RX-8 died at 49,000 miles, an early death for sure. He sounded like a maintenance enthusiast, so it'd be safe to assume his died for reasons other than lack of maintenance.
After tracking him through his other posts, I came to the conclusion that this thread needs a compilation of results. May I suggest that a method be agreed upon so that we can compile and make some sense of this information. Can we compare fuel economy of all members who use premix and those who don't, for example, for starters?
03-29-2008, 07:54 PM
#1077
Metatron
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Can we compare fuel economy of all members who use premix and those who don't, for example, for starters?
We could, but there is a huge disparity in mpg, even between non pre-mixing users, so any conclusions would be based on very flawed data.....
S
We could, but there is a huge disparity in mpg, even between non pre-mixing users, so any conclusions would be based on very flawed data.....
S
03-29-2008, 07:57 PM
#1078
One Shot One Kill
omc wankel barely posts but errr... just ask people such as rotary god and look at the post, problem or renesis revealed or something.
rotorygod have owned alot of rx's so he knows a thing or 2, considering that the 09 engine design remains the same except the addition of 1 more oil injector, we can be sure that the engine is not being lubricated enough as it currently stands and should premix a little to help it go.
rotorygod have owned alot of rx's so he knows a thing or 2, considering that the 09 engine design remains the same except the addition of 1 more oil injector, we can be sure that the engine is not being lubricated enough as it currently stands and should premix a little to help it go.
03-29-2008, 08:14 PM
#1079
That said, I personally believe in erring on the side of caution, especially with a $30K investment, so I do pre-mix, using Idemitsu, at one-half the recommended rate.
03-29-2008, 08:21 PM
#1080
Registered User
On the flawed data comment, well perhaps. It may not be a safe assumption that a cross section of driving is represented by both those who premix and those who don't. And I'm not saying that such a list would result in a conclusion on this subject.
However, for example, I've read in this thread that Petit racing (sp?) uses a premix and then shows one engine where it was used and one where it was not. Now that is hardly conclusive. Two engines do not represent a large enough sample.
Another example is the assumption that one should use premix because racing teams with lots of experience do use it. I'm no racer, so I don't tear down my engine after a long day of using it. Which leads to another question about using premix because racing teams do. My style of driving, while agressive, is still just street driving. Stop and go, long runs at 75mph, short bursts to 8000 rpm. Agreesive, yes, racing no.
All I'm suggesting here is a compilation of data. That data might start with fuel economy and grow to include other factors.
However, for example, I've read in this thread that Petit racing (sp?) uses a premix and then shows one engine where it was used and one where it was not. Now that is hardly conclusive. Two engines do not represent a large enough sample.
Another example is the assumption that one should use premix because racing teams with lots of experience do use it. I'm no racer, so I don't tear down my engine after a long day of using it. Which leads to another question about using premix because racing teams do. My style of driving, while agressive, is still just street driving. Stop and go, long runs at 75mph, short bursts to 8000 rpm. Agreesive, yes, racing no.
All I'm suggesting here is a compilation of data. That data might start with fuel economy and grow to include other factors.
03-29-2008, 08:30 PM
#1081
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On the flawed data comment, well perhaps. It may not be a safe assumption that a cross section of driving is represented by both those who premix and those who don't. And I'm not saying that such a list would result in a conclusion on this subject.
However, for example, I've read in this thread that Petit racing (sp?) uses a premix and then shows one engine where it was used and one where it was not. Now that is hardly conclusive. Two engines do not represent a large enough sample.
Another example is the assumption that one should use premix because racing teams with lots of experience do use it. I'm no racer, so I don't tear down my engine after a long day of using it. Which leads to another question about using premix because racing teams do. My style of driving, while agressive, is still just street driving. Stop and go, long runs at 75mph, short bursts to 8000 rpm. Agreesive, yes, racing no.
All I'm suggesting here is a compilation of data. That data might start with fuel economy and grow to include other factors.
However, for example, I've read in this thread that Petit racing (sp?) uses a premix and then shows one engine where it was used and one where it was not. Now that is hardly conclusive. Two engines do not represent a large enough sample.
Another example is the assumption that one should use premix because racing teams with lots of experience do use it. I'm no racer, so I don't tear down my engine after a long day of using it. Which leads to another question about using premix because racing teams do. My style of driving, while agressive, is still just street driving. Stop and go, long runs at 75mph, short bursts to 8000 rpm. Agreesive, yes, racing no.
All I'm suggesting here is a compilation of data. That data might start with fuel economy and grow to include other factors.
03-30-2008, 12:11 AM
#1082
On the flawed data comment, well perhaps. It may not be a safe assumption that a cross section of driving is represented by both those who premix and those who don't. And I'm not saying that such a list would result in a conclusion on this subject.
However, for example, I've read in this thread that Petit racing (sp?) uses a premix and then shows one engine where it was used and one where it was not. Now that is hardly conclusive. Two engines do not represent a large enough sample.
Another example is the assumption that one should use premix because racing teams with lots of experience do use it. I'm no racer, so I don't tear down my engine after a long day of using it. Which leads to another question about using premix because racing teams do. My style of driving, while agressive, is still just street driving. Stop and go, long runs at 75mph, short bursts to 8000 rpm. Agreesive, yes, racing no.
All I'm suggesting here is a compilation of data. That data might start with fuel economy and grow to include other factors.
However, for example, I've read in this thread that Petit racing (sp?) uses a premix and then shows one engine where it was used and one where it was not. Now that is hardly conclusive. Two engines do not represent a large enough sample.
Another example is the assumption that one should use premix because racing teams with lots of experience do use it. I'm no racer, so I don't tear down my engine after a long day of using it. Which leads to another question about using premix because racing teams do. My style of driving, while agressive, is still just street driving. Stop and go, long runs at 75mph, short bursts to 8000 rpm. Agreesive, yes, racing no.
All I'm suggesting here is a compilation of data. That data might start with fuel economy and grow to include other factors.
1 you live in the city, drive in the city. mpg sucks
2 you dont live in city, and for most of the time your are not in traffic. mpg does not suck.
3 you spend a lot of time on the highway, keep mph below 75 mph. mgp ~ 21-23 mph.
beers
03-30-2008, 12:43 AM
#1083
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Well, I'm sure I have at least one Irishman somewhere in the woodpile, but I think my good FE numbers are because of 35 psi tires, no short trips and a conservative driving style.
Latest fillup: 320 miles required 13.2 gallons of the usual 91 octane Chevron, 10% ethanol. 24.24 mpg
2nd tankful using at least 6 oz MMO oer 10 gal.
I'm not sure I can attribute any efficiency improvement to MMO, I use it mainly to keep the internals clean.
Latest fillup: 320 miles required 13.2 gallons of the usual 91 octane Chevron, 10% ethanol. 24.24 mpg
2nd tankful using at least 6 oz MMO oer 10 gal.
I'm not sure I can attribute any efficiency improvement to MMO, I use it mainly to keep the internals clean.
04-01-2008, 09:03 PM
#1085
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so i have a question; i do not premix but do you fill up then pour the 2 stroke oil into the tank? or do you have to mix it before you put it into the tank. Like for a 2 stroke dirt bike? Because i am curious how people do it, do they just carry around the oil in there trunk or what?
04-02-2008, 02:11 AM
#1086
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so i have a question; i do not premix but do you fill up then pour the 2 stroke oil into the tank? or do you have to mix it before you put it into the tank. Like for a 2 stroke dirt bike? Because i am curious how people do it, do they just carry around the oil in there trunk or what?
I was using Idemitsu at 8oz per fillup but was concerned about excess carbon buildup so I lowered it to 6oz per fill (13 gallons). After reading Jax comments and some other net research I switched over to MMO to try it out. I'm on my 3rd tank and it looks like I'm going to see a 1-2MPG increase, which is surprising- so I'm withholding judgement until my next trip to the station (not that I don't believe you Jax, I'm just a skeptic at heart
). I will say that the engine runs as smooth as when I was using Idemitsu, which is definitely noticeable over not premixing at all. I'm also glad MMO is a good cleanser, makes me feel better about it than Idem.[EDIT[ Lastly, I added half a quart of MMO during my last oil change.
04-05-2008, 07:13 PM
#1087
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I was using 4oz of MMO. I'm now using 8.
Jax- is 8oz per fillup the right amount (13 gallons per fill)?
I also added a bit more to the engine oil. I only used half a quart with my last oil change. I added another 16oz or so. This stuff seems spectacular. I removed the baffles and 1 screen from my intake, added a K&N drop in and installed the Revi air duct. Between that and the MMO my car runs smoother than ever. It's an '07 so I haven't had much time with it, but there is no doubt all of this has helped. The difference is highly noticeable.
Jax- is 8oz per fillup the right amount (13 gallons per fill)?
I also added a bit more to the engine oil. I only used half a quart with my last oil change. I added another 16oz or so. This stuff seems spectacular. I removed the baffles and 1 screen from my intake, added a K&N drop in and installed the Revi air duct. Between that and the MMO my car runs smoother than ever. It's an '07 so I haven't had much time with it, but there is no doubt all of this has helped. The difference is highly noticeable.
04-05-2008, 09:50 PM
#1088
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After reading all these premix threads, I just have one question about these products I got today. Is it good?
This is the culmination of all my rx8club-reading premix knowledge. There is Amsoil Saber Professional coming in the mail, but this is all that is available locally today.
This is the culmination of all my rx8club-reading premix knowledge. There is Amsoil Saber Professional coming in the mail, but this is all that is available locally today.
Last edited by User24; 04-05-2008 at 10:00 PM.
04-05-2008, 10:26 PM
#1090
After reading all these premix threads, I just have one question about these products I got today. Is it good?
This is the culmination of all my rx8club-reading premix knowledge. There is Amsoil Saber Professional coming in the mail, but this is all that is available locally today.
This is the culmination of all my rx8club-reading premix knowledge. There is Amsoil Saber Professional coming in the mail, but this is all that is available locally today.
beers
I feel lucky.
04-05-2008, 10:54 PM
#1095
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if u want a good premix that improve ur rotor engine then go here https://www.rx8club.com/series-i-tech-garage-22/best-engine-oil-premix-rx8-rotor-engine-142534/
04-05-2008, 10:58 PM
#1096
if u want a good premix that improve ur rotor engine then go here https://www.rx8club.com/showthread.php?t=142534
shameless promotion??
but i will say great stuff.. add a bit more. brilliant...
thx jax!!!!
beers
04-06-2008, 12:24 PM
#1097
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04-06-2008, 02:16 PM
#1098
Got Another Rotary
04-07-2008, 11:16 AM
#1099
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I used MMO on my first and second tanks of gas this week on a long drive 100% freeway... the first tank I added 16 onces, set the cruise control at 80mph and saw NO difference in gas mileage, I got exactly 18.6 mpg, on my next fill-up, I added 8 more ounces, and set my cruise control at 70mph and boosted my mpg to about 23 or so (I'm at a 1/4 tank and have 250 miles on the odometer, still haven't filled up yet...). my guess is that MMO didn't do anything to help my mileage, but 10mph made a HUGE difference... I bought 3 32oz bottles of MMO so I'll keep using it at least until it's gone but I was hoping for the same effect as 2cyl oil... ie, boosted fuel economy... who know's maybe the MMO did make a difference in conjunction with slowing down, only time will tell for sure... I've actually been thinking about getting the new 2009 RX8 when it is available for order in a few months (new look, 4.11 final drive=better acceleration), but in all honesty, with this fuel economy and gas prices on the sharp rise... I may be buying the new Supra instead... 400hp, 400 lb ft tq, gas/electric hybrid with over 30mpg (I know that Toyota keeps denying that it's coming, but I just stopped working for Toyota, and it IS coming, 2 versions, a Toyota hybrid and a lexus version with a V10)... I adore my rotary but $62 dollars to fill her up hurts when it's only gonna get me 200mi... if she had a 20b it would totally be worth the mileage sacrifice! I wish for a MAZDASPEED version with a NA 20b (or turbo, but I imagine that would make it pretty pricey)...that would be sweet!
04-07-2008, 08:48 PM
#1100
