# Where do I get manual transmission fluid? **URL:** \ **Category:** SON240sx Automotive\ **Created:** [January 23, 2005, 2:11pm UTC](https://forums.speedlife.net/t/where-do-i-get-manual-transmission-fluid/83196 "2005-01-23T14:11:45Z")\ **Posts on this page:** 9\ **Page:** 2
**Author:** ![Alex](https://avatars.discourse-cdn.com/v4/letter/a/db5fbb/32.png) [@Alex](https://forums.speedlife.net/u/Alex)\ **Post date:** [January 30, 2005, 12:11pm UTC](https://forums.speedlife.net/t/where-do-i-get-manual-transmission-fluid/83196/21 "2005-01-30T12:11:14Z")
> [@Theo23](#): > > I just got some RedLine 75W90 shipped in for 10.00 a bottle. > > If you want some let me know, it is what I will be using in the tranny and the diff. i want some. when and where and ill come pick it up ---
**Author:** ![Gonad](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/gonad/32/5481_2.png) [@Gonad](https://forums.speedlife.net/u/Gonad)\ **Post date:** [January 30, 2005, 12:19pm UTC](https://forums.speedlife.net/t/where-do-i-get-manual-transmission-fluid/83196/22 "2005-01-30T12:19:29Z")
Oh I know about it being thick. When Jantos did mine last year, for the first week or two, the tranny was a bitch to shift into. We did it in Oct. so although weather wasn’t brutally cold it was still pretty nippy. In anycase, I’m still giong go do 2-bottles of Castrol and .4L of Lucas. ---
**Author:** ![Theo23](https://avatars.discourse-cdn.com/v4/letter/t/43a26b/32.png) [@Theo23](https://forums.speedlife.net/u/Theo23)\ **Post date:** [January 30, 2005, 6:24pm UTC](https://forums.speedlife.net/t/where-do-i-get-manual-transmission-fluid/83196/23 "2005-01-30T18:24:58Z")
My personal thoughts on oil additives: These oil companies spend a ton of cash engineering the oils they make, especially synthetic oils. They don’t make it so that you can put in some kind of additive that is supposed to make it even better. If it could have been made better, wouldn’t they have done this themselves? To sum up… Oil additives in cheap oil = ok if you really want to Oil additives in good oil = probably hurting the qualities of the oil My father is an engine builder and has done extensive research on oils. ---
**Author:** ![SHIFT\_KA24DET](https://avatars.discourse-cdn.com/v4/letter/s/b9bd4f/32.png) [@SHIFT\_KA24DET](https://forums.speedlife.net/u/SHIFT_KA24DET)\ **Post date:** [January 30, 2005, 6:34pm UTC](https://forums.speedlife.net/t/where-do-i-get-manual-transmission-fluid/83196/24 "2005-01-30T18:34:58Z")
^^^ Why does Castrol then make Synthetic Oil and Synthetic Oil Stabilizer? It’s all marketing Gimic. Who would pay $49.99 on a 4L of Synthetic Oil w/ Oil Stabilizer when they can Pay $39.99 for the Oil and $14.99 on the Stabilizwe ---
**Author:** ![Theo23](https://avatars.discourse-cdn.com/v4/letter/t/43a26b/32.png) [@Theo23](https://forums.speedlife.net/u/Theo23)\ **Post date:** [January 30, 2005, 6:44pm UTC](https://forums.speedlife.net/t/where-do-i-get-manual-transmission-fluid/83196/25 "2005-01-30T18:44:17Z")
> [@SHIFT\_SR20DET](#): > > It’s all marketing Gimic. True that. ---
**Author:** ![DTS](https://avatars.discourse-cdn.com/v4/letter/d/8491ac/32.png) [@DTS](https://forums.speedlife.net/u/DTS)\ **Post date:** [January 30, 2005, 9:52pm UTC](https://forums.speedlife.net/t/where-do-i-get-manual-transmission-fluid/83196/26 "2005-01-30T21:52:49Z")
lucas is the fucking shittiest pos product i have ever used in my life, stay away from it at all costs. it ruined my perfectly good tranny in my 929 in 1 day FUCK YOU LUCAS ---
**Author:** ![Sasha\_SG](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/sasha_sg/32/5477_2.png) [@Sasha\_SG](https://forums.speedlife.net/u/Sasha_SG)\ **Post date:** [January 31, 2005, 10:15am UTC](https://forums.speedlife.net/t/where-do-i-get-manual-transmission-fluid/83196/27 "2005-01-31T10:15:10Z")
I dont like royal purple much. When my tranny heated up at the track i started crunching gears like it was my job. Redline Shockproof is the way to go. Then again i’m an asshole to my transmissions. ---
**Author:** ![iQuAGoD](https://avatars.discourse-cdn.com/v4/letter/i/f05b48/32.png) [@iQuAGoD](https://forums.speedlife.net/u/iQuAGoD)\ **Post date:** [January 31, 2005, 11:27am UTC](https://forums.speedlife.net/t/where-do-i-get-manual-transmission-fluid/83196/28 "2005-01-31T11:27:49Z")
I use MotoMaster 90W140 (too thick for winter though) I use the non-synthetic, regular, plain old boring $4.99/L stuff you get at any CT. I have never had a problem. I can’t justify spending a lot on oil for the tranny. I would rather change it often. For my engine I use Mobil 1 15W50, but thats another story. MotoMaster meets all the specs required for the tranny, so IMO it is fine. ---
**Author:** ![mr200](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/mr200/32/5495_2.png) [@mr200](https://forums.speedlife.net/u/mr200)\ **Post date:** [January 31, 2005, 11:52am UTC](https://forums.speedlife.net/t/where-do-i-get-manual-transmission-fluid/83196/29 "2005-01-31T11:52:52Z")
Just take a look at 99% of the so-called additives out there … they promise to fix mechanical failure chemically. They are sold to the average schmuck as “no smoke, quiet noisy lifters, reduce fuel consumption, reduce engine knock … etc.” Stops leaks, restores compression, reduces tranny slippage … etc All of these symptoms are caused by mechanical failure. If this “chemical” gets rid of the symptoms, what exactly is it doing about the cause? Nothing. As for additives destroying an engine … well. I know that “stop leak” stuff usually has fibres of some kind or other that basically find their way to the leak, and harden when exposed to oxygen. Sounds great … except for every one particle that makes it to the leak, 100 don’t. With tiny oil and cooling lines feeding your turbo, yes, stop leak can kill it. Lucas broke your tranny? Take the tranny to them. If you’re sure their product caused it, they’ll have no choice but to replace it. If you’re not sure, don’t blame the product. Lucas is used by tons of heavy equipment every day, as well as most NHRA teams. Running molasses in your transmission … there’s pros and cons. Synthetics offer much lower friction between movng parts. This translates into more power (parasitic loss). But you also lose the cushioning factor of syrupy dino oil. When mechanical parts mesh together at insane velocities, the more power the oil absorbs, the less is transferred to the parts. Kind of like how your rear end might take 1000 passes on radials no problem and snap in two the first time you use slicks. Stuff like royal purple is marketed heavily towards freeing up horsepower - and they do. Putting synthetic in a high mile anything is risky. If you’re lucky the worst you’ll get is leaky seals and a bit of blowby. If your bearings have gotten used to a nice thick cusion of dino oil … _SPUN_ [Previous page](https://forums.speedlife.net/t/where-do-i-get-manual-transmission-fluid/83196.md?page=1)