is there much difference between the redline and royal purple synthetic trans fluid??

or difference between redline mt 90 and royal purple 75w-90??

 

^

 

Redline is proven very effective and comes highly recommended by pretty much everyone here, so going Royal Purple is more of exploring untested ground.


Get Redline.

 

Redline is a lot better then Royal Purple. Mobil 1 Syn. is even way better then Royal Purple. I had my oil analized a few times and after 5K miles, the ROyal Purple was completely broken down. The Mobil 1 was still going and was able to go another 2-3K miles according to the sheet they sent me back. I never had the redline tested but after a 5K oil change, you can still see that it still had a thickness to the oil. The Royal Purple was just thin and had you could tell the oil was fully broken down. Hope this helps a bit.

 

Hmmm. Yet another thread with no mention of Amsoil. Redline is a great fluid performance wise, but Amsoil will hold up better in everyday use and is actually cheaper to acquire. Royal Purple is relatively unknown, but there seems to be a cult following around it. I'm sure the other 10K members of this site will chime in with what they recommend.

 

Well, Phuong (member got rice?) is the only one I'm aware of that uses Amsoil gear oil in his 300z. Meanwhile, I would say at least 100 guys here have used Redline MT-90 and have been pleased. As much as I like Amsoil, there aren't enough "thumbs ups" from people and a history of success. That being said, someone can always start the trend.

The F-150 guys seem to use Amsoil gear oil a lot for their differentials, but it's hard to show that to members on these forums. This is one time when jumping on the bandwagon for Redline isn't a bad thing.

I just wish more members would have their gear oil analyzed so we could see how well different ones hold up.......

 

Synki,

Why are you holding back on those analysis results on me and your fellow brethren? Especially the Royal Purple.




I demand that you get in touch with me so we can get those results up.

 

I see your point. Redline has tremendous marketing momentum. I use the 80W-90 GL4 in my car, as does Vinipux. I have also used Redline MT-90 in the 5-speed Altima I had and can honestly say Amsoil was smoother when it got cold. I know Vinipux has used both Redline and Amsoil in his Maxima, hopefully he will chime in with his observations on the differences.

I think the problem with getting the gear oil analyzed is that most people don't change it at all. The few that do switch to a synthetic and then just leave it in. I have a feeling the majority end up getting rid of the car before it needs to be changes again.

 

I agree.

 

I think some of you are talking about motor oil and the original queation was about tranny fluid.

DW

 

It doesn't matter if it's gear oil or motor oil, I asked Synki for his results. The benefit of making the post should be obvious.

 

Not doubting the benefit, just reducing any potential confusion

DW

 

But that requires thought and attention.........and you're forgetting about Rule #1.

 

Bill's about to break out my favorite gif. I think he's probably used it at all of us at least once! Bill, if I could attach that to my work emails...man............

 

I have a cocktail mix of Amsoil tranny + engine oil in my 5-sp. Don't ask me why, my mechanic did it. When I accidently spilled some when working on the tranny, it was very clear and looked just like it did when it came out of the bottle.

 

Clear = Just fine

Opaque = Must change immeadiately

Brown = HOW COULD YOU DO THAT TO YOUR VEHICLE? I DON'T CARE IF IT'S BEEN A WEEK, CHANGE IT IMMEDIATELY!!!!!!!!!!!!!!!!!!!!

Black = Don't even post that here. You will be banned.

 

LOL..

On a side note, I have STOCK fluid in the 5-spd tranny and will be switching out in the next few weeks...Can we send to Blackstone with the same bottle for engine oil analysis? Also is there any point? I have 16K on the stock fluid.

 

I'm using Royal purple ATF and its great. Royal Puple sells to big industry, so they can't sell CRack to big business, I was very impressed with there web site. I didnt like the fact that redline fluid will change color after its been used shortly, b/c I like to be able to compare the old fluid to the new before changing it.

 

 

Colonel,

Yes, that would be great to have a stock gear oil sample. The kit Blackstone sends you can be used for oil, ATF, gear oil, etc. It would at least get the ball rolling and encourage others to do the same. I would hazard to guess that the results would raise a few eyebrows based on my Nissan ATF analysis after 30k on my 99, which was not pretty.

 

Seeing as this is going to be my first sample, quick questions.
1) Do I do the TBN on the gear oil sample?
2) Oil type is 75W90 Correct?

Thanks..now I just have to find Alex's 10% off website....

 

Bill,

I will get you my results as sooon as i can get my hands on a scanner.

I will also post up some other results i have had with Mobil 1 syn from my cousins Lightning and Supra.

 

Thanks Synki!

 

1) TBN is up to you. I am not familiar on what the value should be, but it would probably be helpful as Blackstone will comment on how "acceptable" the value is.

2) I believe that 75W90 is correct, but one of these 5-speed guys should confirm that.

 

My manual says 80W-90 is preferrable, so I would assume it cam from the factory with it. I'm not sure if it changed for 5th gens though.

 

Quote:

My manual says 80W-90 is preferrable, so I would assume it cam from the factory with it. I'm not sure if it changed for 5th gens though.

Man, you guys made me actually read the manual! DOH!

BTW API GL-4 75W-90 ONLY it says....

 

Huh, I wonder why the spec changed? I thought they were the same transmission.

 

Dunno..

Nissan Always changing things up....

 

Hmmm....The lighter weight will mean less friction and slightly more performance, so maybe they are just trying everything they can to make the early 5th gens as fast as the 4th gens

 

HEY! You mean thats one of the ways that MAKE us faster than a 4th gen....