Did I underfill tranny fluid?
#1
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Did I underfill tranny fluid?
Hi Folks
I finally drained and filled my tranny and diff fluid on my '08 6mt for the first time today. I filled the diff to overflowing (about 1.4-1.5 quarts), but when I filled the transmission, I put in about 1.8-1.85 quarts (there was 4oz left in the bottle) when my pump broke. There was no overflow from the fill hole.
I decided that was enough, and closed up, but now I'm thinking - did I underfill it?
The car was on a little bit of an incline (driver's side about an inch higher than passenger side), so maybe that had something to do with it?
So, my question is, should I worry or just forget about it and drive?
thanks...
I finally drained and filled my tranny and diff fluid on my '08 6mt for the first time today. I filled the diff to overflowing (about 1.4-1.5 quarts), but when I filled the transmission, I put in about 1.8-1.85 quarts (there was 4oz left in the bottle) when my pump broke. There was no overflow from the fill hole.
I decided that was enough, and closed up, but now I'm thinking - did I underfill it?
The car was on a little bit of an incline (driver's side about an inch higher than passenger side), so maybe that had something to do with it?
So, my question is, should I worry or just forget about it and drive?
thanks...
#2
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It takes 2 quarts exactly. You probably aren't doing immediate harm, but you need to get it filled appropriately. Running with too low fluid will increase the heat saturation the fluid runs at.
The good news is that you can fill the transmission of a Series1 RX-8 through the shifter turret. Just remove the shifter, insert funnel, and pour in exactly 2 quarts (or the fluid you have left). No need for a pump.
The good news is that you can fill the transmission of a Series1 RX-8 through the shifter turret. Just remove the shifter, insert funnel, and pour in exactly 2 quarts (or the fluid you have left). No need for a pump.
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It takes 2 quarts exactly. You probably aren't doing immediate harm, but you need to get it filled appropriately. Running with too low fluid will increase the heat saturation the fluid runs at.
The good news is that you can fill the transmission of a Series1 RX-8 through the shifter turret. Just remove the shifter, insert funnel, and pour in exactly 2 quarts (or the fluid you have left). No need for a pump.
The good news is that you can fill the transmission of a Series1 RX-8 through the shifter turret. Just remove the shifter, insert funnel, and pour in exactly 2 quarts (or the fluid you have left). No need for a pump.
#4
Be careful when filling through the shifter not to spill that stuff inside your car, I used the OEM stuff that Mazda sells the first time I did mine and man does that stuff stink. It was a very small amount and I did not think that stuff was ever going to get out of the car. The last time I did it I actually got some tubing and put a small hole in the plastic quart bottle and pushed about 18 PSI of compressed air in through the other end and sent it up through the transmission that way. It was a little longer process, but at least if I spilled it I did not have to smell it for months.
#5
running on double cream!
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Thanks for the quick reply. For some reason (maybe I read it somewhere) I thought it was 1.8. I did waste a little oil flushing the pump (I did the diff first so wanted to clean off the leftvoer diff fluid), so I think I'll end up at 1.9 or 1.95, I'll try the shifter way next.
2004 RX-8 Transmission & Differential Refill
https://www.rx8club.com/series-i-do-...acement-35115/
I'm gonna dig through the FSM unless RIWWP beats me too it.
I sure hope its right since I've had 1.8 quarts of Redline MT-90 in there for about 2 years.
#6
You know what, I thought it was 1.8 as well. I think this is the guide most of us followed as its what is linked in the DIY.
2004 RX-8 Transmission & Differential Refill
https://www.rx8club.com/series-i-do-...acement-35115/
I'm gonna dig through the FSM unless RIWWP beats me too it.
2004 RX-8 Transmission & Differential Refill
https://www.rx8club.com/series-i-do-...acement-35115/
I'm gonna dig through the FSM unless RIWWP beats me too it.
#7
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Hmm. The factory article does indeed say 1.85 US QT.
I have another source that says 2.4qt, which i know is wrong. And a 3rd source that says 2qt.
I guess I was wrong though.
I did...4 changes? with my 8 and used 2qt each time.
I have another source that says 2.4qt, which i know is wrong. And a 3rd source that says 2qt.
I guess I was wrong though.
I did...4 changes? with my 8 and used 2qt each time.
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Interesting - so some folks are putting in 2 quarts, and others 1.8, with no issues as far as I can see. I think I'll now stick with what is in there right now (1.8-1.85).
I appreciate everyone's responses
I appreciate everyone's responses
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