Lets look at expo1's over 100K renesis motor
#326
Ayrton Senna Forever
Of course our rotary engine experience and dealings with oils used in high rpm endurance applications is so limited .
There's nothing clearance-wise or material-wise about the renesis that would prevent someone from using a 20W50, I wouldn't personally run that in a cold climate. All the the research we've done and seen indicates that the thinner oils are used for improved gas mileage and tiny hp increase. Having seen more than 1000 street and racing rotaries apart and conducted tests with various oils I'd rather go a little toward the higher end of the viscosity scale than the other way.
Paul.
There's nothing clearance-wise or material-wise about the renesis that would prevent someone from using a 20W50, I wouldn't personally run that in a cold climate. All the the research we've done and seen indicates that the thinner oils are used for improved gas mileage and tiny hp increase. Having seen more than 1000 street and racing rotaries apart and conducted tests with various oils I'd rather go a little toward the higher end of the viscosity scale than the other way.
Paul.
#327
If Iraq has no oil, do you seriously think our government will give a crap ? Im sure North Korea **** the hell outa this government for years. You dont see this government send like 300K troops there to *protect* and *Free* their people. Theres war in South africa, like Congo, every freaking day, you dont see this government go *help them and free the people*, oh wait, they have no oil there. nevermind !
Not to mention, Osama was TRAINED by FBI. So who started the problem ?
You should stop watching CNN or Fox for your sources.
They dont even dare to report stuff in Afghanistan anymore, its like a PoS right now, A LOT worst than *post* war.
I hate Terrorist I know, but do you really think they want to be a terrorist to **** people off ? Who doesnt want to live ? Who loves to strap a bomb on then run to people ? These people already lost everything, so they have nothing to lose.
Plus, our big 3 in the government runs oil business ... Wonder where did the 120 bux a barrel comes from ?
when we bail out of Iraq and either Iran or AQ take it over, i'll be laughing my *** of when oil hits $300 a barrel... then i'll be crying and have to bike 15 miles to work -sigh-
I always noticed how much worse my car sounds in the winter on a cold start running 5W20 vs summer 5W20... 0W30 might be a nice option actually
I always noticed how much worse my car sounds in the winter on a cold start running 5W20 vs summer 5W20... 0W30 might be a nice option actually
Last edited by nycgps; 04-22-2008 at 08:18 AM.
#329
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But anyway, I still think the craze in going thicker then 5W30 is lunacy unless you have a full time race car as the dry starts will kill you.
#331
No means yes
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Spot on about the other stuff.... The media in this country makes me sick.
#332
http://nymexdatardc.cme.com/
But anyway, I still think the craze in going thicker then 5W30 is lunacy unless you have a full time race car as the dry starts will kill you.
But anyway, I still think the craze in going thicker then 5W30 is lunacy unless you have a full time race car as the dry starts will kill you.
#334
Oil prices has been going *UPWARDS* ever since Bush is IN the office. It starts slow, like couple bucks, but it did went up.
then Bush & Dick is like *oh wait, its not going up fast enough, lets just start a *war of terror* to push things up a bit!!!*
They got what *they* want, but look at Iraq right now, its like a Piece of **** everywhere. Even WORST than the time that saddam was in power, Im Not saying I like Saddam, but its fact that Iraq had a better life before than now.
Screw it, lets not turn this into A debate
Last edited by nycgps; 04-23-2008 at 08:03 AM.
#337
Registered
In the long run yeah ... but not 2008, they just wanna suck every single dollar they can find before Bush is outa the office, cuz you never know what will happen on the next election.
Oil prices has been going *UPWARDS* ever since Bush is IN the office. It starts slow, like couple bucks, but it did went up.
then Bush & Dick is like *oh wait, its not going up fast enough, lets just start a *war of terror* to push things up a bit!!!*
They got what *they* want, but look at Iraq right now, its like a Piece of **** everywhere. Even WORST than the time that saddam was in power, Im Not saying I like Saddam, but its fact that Iraq had a better life before than now.
Screw it, lets not turn this into A debate
Oil prices has been going *UPWARDS* ever since Bush is IN the office. It starts slow, like couple bucks, but it did went up.
then Bush & Dick is like *oh wait, its not going up fast enough, lets just start a *war of terror* to push things up a bit!!!*
They got what *they* want, but look at Iraq right now, its like a Piece of **** everywhere. Even WORST than the time that saddam was in power, Im Not saying I like Saddam, but its fact that Iraq had a better life before than now.
Screw it, lets not turn this into A debate
#339
economy cannot go bad in *one day*, its all *build up* like carbon deposit
Look at how Bush spent the money on Iraq, war of terror my ***, we're talking about Trillions of dollars, throwing bombs for no reason. Protect Iraq from Terrorist and give them freedom my butt. North Korea is bad too and Im sure they **** US government more than Saddam did, why Bush never consider about sending our troops over there? Cuz they have no Oil !!!!
Look back the history, whenever the republicans go in the economy will *fudged up* then the democrats step in to fix it, then the republican goes in again the cycle goes on.
No more, this is not what this thread is for
Last edited by nycgps; 04-23-2008 at 08:28 AM.
#340
Got Another Rotary
The economy ALWAYS runs in cycles of good and bad, it is necessary for the overall health of the economy to have slowdowns occasionally, and the timing of these cycles tend to place praise and blame on whomever happens to be in government at the time of their occurrences.
While the government can impact the economy some with policies, it is a small impact relative to all the goings-on in the US and World economies.
Back to expo's worn out motor - and his new one!
#341
Ayrton Senna Forever
0w only "show" how thin is the oil at cold start up. Thinning at hot engine is depend on the -xx. An 0w-30, 5w-30 or 10w-30 is the same (almost)thin when hot.
... even 0w is not enough thin for start up, but that is the best on the market today.
... even 0w is not enough thin for start up, but that is the best on the market today.
#342
Registered User
Those offering up speculation and uninformed opinion in a fashion that encroaches on boundaries of promulgated fact definately should adhere to the advice that it's better to keep thier mouths shut and be thought an idiot than to open it and remove all doubt.
Enough of the speculative (at best) political discussion. I get all I can manage watching CNN and reading european press.
Enough of the speculative (at best) political discussion. I get all I can manage watching CNN and reading european press.
#344
Got Another Rotary
Some still think that an xWxx oil starts out thinner and "thickens" as it gets warmer to its designated weight - NO, NO, NO. A Cold oil is ALWAYS thicker than a warm oil, it is just a matter of how much thicker it gets when it cools to room temperature.
0W30 means that the oil is a 30 weight at operating temperature of 100C, for a 30 weight this is around 9.5-11.5 cSt.
This same oil at room temperature (the 0W part) of 40C is around 45-50 cst - around 4-5 times as thick.
By comparison, a 10W would be at about 65-70 cSt at room temperature (40C) or about 6-7 times as thick, but the exact same weight at operating temperature (100C) of about 9.5-11.5 cSt.
Last edited by Jax_RX8; 04-23-2008 at 10:06 AM.
#345
Those offering up speculation and uninformed opinion in a fashion that encroaches on boundaries of promulgated fact definately should adhere to the advice that it's better to keep thier mouths shut and be thought an idiot than to open it and remove all doubt.
Enough of the speculative (at best) political discussion. I get all I can manage watching CNN and reading european press.
Enough of the speculative (at best) political discussion. I get all I can manage watching CNN and reading european press.
So true - it is amazing to me how many people still do not understand what these designations really mean.
Some still think that an xWxx oil starts out thinner and "thickens" as it gets warmer to its designated weight - NO, NO, NO. A Cold oil is ALWAYS thicker than a warm oil, it is just a matter of how much thicker it gets when it cools to room temperature.
0W30 means that the oil is a 30 weight at operating temperature of 100C, for a 30 weight this is around 9.5-11.5 cSt.
This same oil at room temperature (the 0W part) of 40C is around 45-50 cst - around 4-5 times as thick.
By comparison, a 10W would be at about 65-70 cSt at room temperature (40C) or about 6-7 times as thick, but the exact same weight at operating temperature (100C) of about 9.5-11.5 cSt.
Some still think that an xWxx oil starts out thinner and "thickens" as it gets warmer to its designated weight - NO, NO, NO. A Cold oil is ALWAYS thicker than a warm oil, it is just a matter of how much thicker it gets when it cools to room temperature.
0W30 means that the oil is a 30 weight at operating temperature of 100C, for a 30 weight this is around 9.5-11.5 cSt.
This same oil at room temperature (the 0W part) of 40C is around 45-50 cst - around 4-5 times as thick.
By comparison, a 10W would be at about 65-70 cSt at room temperature (40C) or about 6-7 times as thick, but the exact same weight at operating temperature (100C) of about 9.5-11.5 cSt.
Most people dont understand tho
#346
road warrior
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I have a feeling if Mazda had recommended 5W30 for the Renesis here like they did for the rest of the world we wouldn't find people so hesitant to use 5W40. Yet, since they recommended 5W20, people are very wary of going to a 40 weight hot since it feels like too much of a difference from the manufacturer's recommendation.
#347
Ayrton Senna Forever
I have a feeling if Mazda had recommended 5W30 for the Renesis here like they did for the rest of the world we wouldn't find people so hesitant to use 5W40. Yet, since they recommended 5W20, people are very wary of going to a 40 weight hot since it feels like too much of a difference from the manufacturer's recommendation.
#348
Hahahah.... just kidding...
What modifiers they put in to get to the 0W or to get to the W40 depends on the base stock. So, I'm not wrong, nor are you necessarily wrong. Additives can be used to go in both directions.
My point is that I rather have less additives and have startup protection, which is why I like ester based oils.
#349
Carbonormous
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Regarding why people don't run 0W, don't forget most if not all of them are synthetics. Same with 5W-40. Not to get into that debate.
#350
Ayrton Senna Forever
Regarding why people don't run 0W, don't forget most if not all of them are synthetics. Same with 5W-40. Not to get into that debate.
04-24-2008 06:54 AM
04-24-2008 06:54 AM
- Synthetic oils are always better. -