Official SARX Lounge
#7076
if you use the sohn like 9k, then yes syn is the way to go in a renesis but if you do not have the omp blocked then you should be using conventional..... a little reminder, that with a high viscosity, the oil is thicker, takes longer to bring to op temp and to cool and can lead to pressure drops
#7077
what was I thinking
iTrader: (8)
if you use the sohn like 9k, then yes syn is the way to go in a renesis but if you do not have the omp blocked then you should be using conventional..... a little reminder, that with a high viscosity, the oil is thicker, takes longer to bring to op temp and to cool and can lead to pressure drops
that sounds like a pretty neat class!
#7079
WENTGERMAN
iTrader: (6)
if you use the sohn like 9k, then yes syn is the way to go in a renesis but if you do not have the omp blocked then you should be using conventional..... a little reminder, that with a high viscosity, the oil is thicker, takes longer to bring to op temp and to cool and can lead to pressure drops
#7080
SARX Legend
iTrader: (46)
Yeah how the oil burns seems like a non issue, I think the thought process was that synthetics may leave behind more deposits when burned and gunk up or eat up the seals but a lot this talk was never really based on any real findings. There is no doubt synthetic is better, but who knows why Mazda recommends against it. My personal uneducated opinion is that they just did not want to bother with the cost of doing any real testing on the subject.
#7081
just look at wtb's use of royal purple.... he has gone through so many engines.... with what the engineer explain and my understanding, the internal combustion temp does not get high enough in the rotary to completely burn off the syn oil, leading to more carbon build up and a sludge to be left behind inside the housing, and possibly going out the exhaust port to your exhaust components....
this is just my opinion, you can take it for what its worth
this is just my opinion, you can take it for what its worth
#7082
WENTGERMAN
iTrader: (6)
We wont really be able to find out anything until we crack open an engine using only synthetic.
Just from what Ive been looking at all day I'm going to make the switch to from 10/30 gtx to 10/30 gtx syn blend. Still not sold on mobil 1 yet...
Last edited by shadycrew31; 04-11-2012 at 01:29 PM.
#7083
SARX Legend
iTrader: (46)
EGT's are in the 1600-1700F range at the rear O2, so I'd imagine that they are much higher in the housings. I can't believe that is not enough to burn it off if the flashpoint is in the 350-400F range. But of course this is just my uneducated logic
As for what is left behind I don't know. I guess it's time to light some oil on fire.
![Lol](https://www.rx8club.com/images/smilies/lol.gif)
#7084
WENTGERMAN
iTrader: (6)
egt's are in the 1600-1700f range at the rear o2, so i'd imagine that they are much higher in the housings. I can't believe that is not enough to burn it off if the flashpoint is in the 350-400f range. But of course this is just my uneducated logic
As for what is left behind i don't know. I guess it's time to light some oil on fire.
![Lol](https://www.rx8club.com/images/smilies/lol.gif)
#7086
SARX Legend
iTrader: (46)
Good point. I am guessing misfires happen randomly and the fuel is not lit but sent out the exhaust port. But then that means the temps inside the housing are not that hot then..........
Hmmmm, the oil may remain in the chamber, also unburnt and that is how build up happens. I need to read more.
Hmmmm, the oil may remain in the chamber, also unburnt and that is how build up happens. I need to read more.
#7087
SARX Legend
iTrader: (46)
The autoignition temperature of Gasoline is listed as 536F. Seems to me that if it was not ignited by the plugs it should light anyway.
I'm gonna borrow a shrink ray and send some noob into my engine to get readings.
I'm gonna borrow a shrink ray and send some noob into my engine to get readings.
#7088
WENTGERMAN
iTrader: (6)
Also I'm pretty sure all the gasses aren't allowed to escape, since its fairly quick process. Whatever is leftover sticks itself to the rotor as it compresses for the intake stroke. Then gets super cooled with the A/F mixture, making it a much harder solid that it was originally in liquid form.
That's really just a guess though, I dunno what really happens in there.
#7090
what was I thinking
iTrader: (8)
EGT's are in the 1600-1700F range at the rear O2, so I'd imagine that they are much higher in the housings. I can't believe that is not enough to burn it off if the flashpoint is in the 350-400F range. But of course this is just my uneducated logic
As for what is left behind I don't know. I guess it's time to light some oil on fire.
![Lol](https://www.rx8club.com/images/smilies/lol.gif)
#7092
what was I thinking
iTrader: (8)
![AK](https://www.rx8club.com/images/icons/ak.jpg)
EGT's are in the 1600-1700F range at the rear O2, so I'd imagine that they are much higher in the housings. I can't believe that is not enough to burn it off if the flashpoint is in the 350-400F range. But of course this is just my uneducated logic
As for what is left behind I don't know. I guess it's time to light some oil on fire.
![Lol](https://www.rx8club.com/images/smilies/lol.gif)
![Scratchhead](https://www.rx8club.com/images/smilies/scratchhead.gif)
#7093
what was I thinking
iTrader: (8)
Yea I'm gonna throw that under operator error category. lol.
We wont really be able to find out anything until we crack open an engine using only synthetic.
Just from what Ive been looking at all day I'm going to make the switch to from 10/30 gtx to 10/30 gtx syn blend. Still not sold on mobil 1 yet...
We wont really be able to find out anything until we crack open an engine using only synthetic.
Just from what Ive been looking at all day I'm going to make the switch to from 10/30 gtx to 10/30 gtx syn blend. Still not sold on mobil 1 yet...
and thats what I am thinking I will use 10/30syn...just not sure if I can bite the 0/40 that you use 9k