Hey, heading down to my dad's place for Thanksgiving, and another feast dedicated to the genocide of our nation's natives, and figured I'd head out there early while his dealer's open and change my transmission fluid (59k). My bro just changed his on his spec v, and changed to redline synthetic (I forget what weight exactly), and while I can understand because he has an LSD, it's also just a good idea because of the cold weather and I've heard 4th gen Prelude's have (treading lightly) a spotty history with their synchros, but generally I'd just like to keep them well lubed, especially when the temps are low and I can't warm the car for like 15 minutes to get the transmission warm.
Long story long, any way, does anybody have any suggestions for synthetic transmission fluid, or does anyone have a specific kind in their car? If you know what weight or specifics, that'd help, and I hope I can get off shelf because I hope to change my fluid either tomorrow or Friday. Thanks in advance.
If you are looking for Synthetic then get Redline MTL or MTL-90 (no sure about the exact name, but close). Either one will work fine. Redline MTL is slightly thiner then MTL-90, so you might gain sligtly more hp. Honda's MTL is 10w-30, which what I would recommend.
thanks for that last tip, I was just wonderin if I couldn't get ahold of Redline, I could just use mobil 1 synthetic. I won't now lol. My brother dropped by today, when he bought his redline he bought it through a guy he knows who's actually a rep for them, so he called him and the guy said the closest they have to honda mtl is Redline MTL-75, which might make shifting a little more difficult (maybe an extreme word, basically it means that when shifting, it'll require a minute extra amount of effort) but the benefit would be a synthetic fluid that will basically coat well, regardless of the temperature. I'm not sure if I'll be able to get some before I head down to Cinci tomorrow, I suppose if all else fails I'll just put some fresh 10W-30 in and when I get around to it, change it to redline, seems like a waste, but oh well.
Originally posted by 4thGenReady2Go thanks for that last tip, I was just wonderin if I couldn't get ahold of Redline, I could just use mobil 1 synthetic. I won't now lol. My brother dropped by today, when he bought his redline he bought it through a guy he knows who's actually a rep for them, so he called him and the guy said the closest they have to honda mtl is Redline MTL-75, which might make shifting a little more difficult (maybe an extreme word, basically it means that when shifting, it'll require a minute extra amount of effort) but the benefit would be a synthetic fluid that will basically coat well, regardless of the temperature. I'm not sure if I'll be able to get some before I head down to Cinci tomorrow, I suppose if all else fails I'll just put some fresh 10W-30 in and when I get around to it, change it to redline, seems like a waste, but oh well.
Just use non synthetic. It's fine, since it will clear out any gunk thats left in the tranny once you substitute something else.
The gunk isn't what I'm wondering about, it's just the protecting ability of the tranny fluid when it gets really cold, synthetic is generally regarded as being better for your transmission, as it will coat well at any temperature, read the thread.
Originally posted by 4thGenReady2Go The gunk isn't what I'm wondering about, it's just the protecting ability of the tranny fluid when it gets really cold, synthetic is generally regarded as being better for your transmission, as it will coat well at any temperature, read the thread.
I wread thread, what I meant was as a temporary fill of 'anything' is fine untill you find what's needed, like Redline. It's alway a good practice to flush the tranny.
Synthetic oil isn't good for tranny since its too slippery. This causes premature synchronizer wear. Redline has friction modifiers to let the synchr. engage easily.
Flow of oil in the tranny has nothing to do how well it shifts. It must be fully warmed for proper opperation.
Ok, sorry for jumping on you. Yeah, for a temporary fill I figured I'd just put the standard weight regular oil in. Thanks again the synthetic oil tip, you might've saved my transmission. As for the Redline, the rep my brother spoke to said that it might feel a little different (as in slightly harder) to shift with the MTL-75, partly because there's a decent difference in weight between that and what, 5W-30 or whatever oil is recommended for this tranmission. But yeah, he mentioned the huge plus of synchro engagement, which was mainly what I was looking for, especially when I leave for class in the winter months and it's well below freezing outside.
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