Transmission Oil Life: Royal Purple versus Redline
01-19-2007, 12:37 AM
#52
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Originally Posted by Rhythmic
It seems like I'm the only one, but...my tranny actually feels better and sounds better when it's cold...? I've got the stock fluid (got RP waiting to go in), but the tranny WILL GO INTO GEAR EASIER when its COLD, and the SYNCROS make LESS NOISE when it's COLD!!
But... I grinded 2nd gear at high rpm for the first time yesterday (was properly warmed). Maybe throwout bearing, maybe syncros, or shift fork, I don't know what the deal was with that.
But... I grinded 2nd gear at high rpm for the first time yesterday (was properly warmed). Maybe throwout bearing, maybe syncros, or shift fork, I don't know what the deal was with that.
01-19-2007, 12:55 AM
#54
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You can use it for both the transmission and differential.
So 4 days after switching to Royal Purple, I can say that my 1-2 crunchiness is still there sometimes, but my 2-3 shift is now smooth. I guess the factory engineers knew what they were doing when they specced a straight 90 transmission oil (how surprising!).
So 4 days after switching to Royal Purple, I can say that my 1-2 crunchiness is still there sometimes, but my 2-3 shift is now smooth. I guess the factory engineers knew what they were doing when they specced a straight 90 transmission oil (how surprising!).
01-19-2007, 09:56 AM
#59
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i ended up going with royal purple fluids in my car, oil, gear oil, and tranny fluid, their stuff is top notch, but comes with a price.
Redline oils are nice, but i personally i have never used any of them in my vehicles.
Redline oils are nice, but i personally i have never used any of them in my vehicles.
01-19-2007, 11:38 AM
#60
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Originally Posted by Raptor75
From what I understand the OEM is a synthetic trans oil already and it dose not grind the gears when cold. Makes me wonder if it is worth switching it.
I changed the oil in the rear differential as well, but as expected I haven't notice any discernable difference.
-Mr. Wigggles
Last edited by MrWigggles; 01-19-2007 at 11:40 AM.
01-23-2007, 11:50 AM
#61
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Put the RP maxgear in this weekend. I noticed right away that the shifter felt smoother when engaging gears, and while cruising the tranny was MUCH QUITER. This has fufilled both my goals: smoothness and less noise. (I've got the AFE SS, too.)
01-26-2007, 03:23 PM
#66
1935 lbs. FTW!
Originally Posted by bsteimel
I have used amsoil in many different cars and am really happy with it, I've got it ready to go in when I get around to doing it. I researched redline, RP and amsoil before deciding on amsoil. Redline it seemed many people had hard shifting when it was cold. I haven't heard any complaints about RP. Since my past experience with amsoil is steller i decided to go with them. I used it in the engine as well (please lets not start a synthetic engine oil thread).
What about oil weights? In the 2004 manual for the LSD they recommended 75w90 and the same for the trans both gl-5 spec. I went to the mazda dealer and was asking about the mazda oils (which they use for every mazda nothing special about it) and they put 80w90 in the lsd and 75w90 in the trans still both gl-5 spec. What weights do people use in the trans and diff?
What about oil weights? In the 2004 manual for the LSD they recommended 75w90 and the same for the trans both gl-5 spec. I went to the mazda dealer and was asking about the mazda oils (which they use for every mazda nothing special about it) and they put 80w90 in the lsd and 75w90 in the trans still both gl-5 spec. What weights do people use in the trans and diff?
01-26-2007, 04:00 PM
#67
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Colleagues, try to use for your tranny European oils and you feel the real difference! We have a strong opinion here that US brands is cheapest mods of oils without really helpful additives and this because of many reasons, the one is that you change your cars is so fast and there is no need for long life of your internal components, the faster it breakes, the faster you'd go to closest dealer for other car!
Try for example Motul - its a French brand, certainly its expensive, but you feel easy shifting even at extremely low temperatures and you can be sure for long lasting gear box and diff.
I want start new tread about this matter for comparing of oils, so we will see more arguments from both sides but that will serve for one reason - to find proper solution and let it anybody to know all the reasons what to choose.
Try for example Motul - its a French brand, certainly its expensive, but you feel easy shifting even at extremely low temperatures and you can be sure for long lasting gear box and diff.
I want start new tread about this matter for comparing of oils, so we will see more arguments from both sides but that will serve for one reason - to find proper solution and let it anybody to know all the reasons what to choose.
Last edited by Yusik; 01-27-2007 at 03:39 AM.
01-26-2007, 04:31 PM
#68
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I use Motul for my brake fluid and know about the European (and Japanese) automotive fluid manufacturers. I do not believe that Royal Purple makes a low quality product and in fact if I had felt Motul or any of the other brands was higher quality, I would've gone to the trouble of tracking it down. Maybe before making up your minds that all US products are crap, you should actually try some of the stuff that isn't sold at a Walmart.
01-27-2007, 07:59 PM
#69
Easy guys he is just trying to be helpful. He does have a point about our throw a way society. But that is WHY we are looking at the good stuff --right? We dont want to throw it away and get another. Yes there are good ones around from all over the world.
olddragger
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01-29-2007, 12:20 PM
#70
1935 lbs. FTW!
Put in some amsoil 75W90 GL5 in the tranny and it seems notchy when cold but about the same as before when warmed up. The fluid was pretty dirty and the diff fluid was FILTHY at 10,000 miles.
Also I put in at LEAST 2 quarts of the amsoil and none leaked out, the manual says 1.8 does anyone know how much it actually takes? I stuck my finger inside the fill hole and could fill the fluid but I wonder if I underfilled it?
Also I put in at LEAST 2 quarts of the amsoil and none leaked out, the manual says 1.8 does anyone know how much it actually takes? I stuck my finger inside the fill hole and could fill the fluid but I wonder if I underfilled it?
01-29-2007, 12:34 PM
#71
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Originally Posted by CosmosMpower
Put in some amsoil 75W90 GL5 in the tranny and it seems notchy when cold but about the same as before when warmed up. The fluid was pretty dirty and the diff fluid was FILTHY at 10,000 miles.
Also I put in at LEAST 2 quarts of the amsoil and none leaked out, the manual says 1.8 does anyone know how much it actually takes? I stuck my finger inside the fill hole and could fill the fluid but I wonder if I underfilled it?
Also I put in at LEAST 2 quarts of the amsoil and none leaked out, the manual says 1.8 does anyone know how much it actually takes? I stuck my finger inside the fill hole and could fill the fluid but I wonder if I underfilled it?
01-29-2007, 04:09 PM
#73
Originally Posted by Rhythmic
Put the RP maxgear in this weekend. I noticed right away that the shifter felt smoother when engaging gears, and while cruising the tranny was MUCH QUITER. This has fufilled both my goals: smoothness and less noise. (I've got the AFE SS, too.)
01-30-2007, 09:42 PM
#75
Originally Posted by CosmosMpower
Put in some amsoil 75W90 GL5 in the tranny and it seems notchy when cold but about the same as before when warmed up. The fluid was pretty dirty and the diff fluid was FILTHY at 10,000 miles.
Also I put in at LEAST 2 quarts of the amsoil and none leaked out, the manual says 1.8 does anyone know how much it actually takes? I stuck my finger inside the fill hole and could fill the fluid but I wonder if I underfilled it?
Also I put in at LEAST 2 quarts of the amsoil and none leaked out, the manual says 1.8 does anyone know how much it actually takes? I stuck my finger inside the fill hole and could fill the fluid but I wonder if I underfilled it?
Yep the owner's manual says approximately 1.8 quarts and the shop manual says approximately 1.9 quarts.
The three that I have changed used the entire 2 quarts.
I put the Amsoil 75w90 Series 2000 in both the trans and diff. There is a definite improvement in shifting.
As others have noticed when cold it is slightly tougher to get into gear. If a person lets the car warm up till a minute after the idle drops below 1,500 rpms it will be easier to do the shift into first. I recommend not downshifting into first unless stopped when it is cold and try shifting into gear just before the pedal goes all the way to the floor. A tough one to remember after a habit is formed.
As for downshifting into first at 25 mph the owner's manual says not to downshift to first above 20 mph.
A rule I follow is not to downshift to first if I am going over 10 mph once it is warmed up.