Transmission Oil Review

[h2v7]

Originally Posted by JKL1031

want to warm it up as fast as you can. the engine wears most when its cold. but do allow some 15s for oil circulation.

so i should turn it on and drive it right away??(or atleast 15seconds)

[JKL1031]

no not right away. just play around with ur radio or something. On my mazda, I learned to recognize a roaring sound (like road noise, but not as loud), and then it wud go away, granted you dont have an exhaust.

[IBoughtAS13]

MT-90 from Redline.

Best for Supra, 240sx and RX-7 transmission. Other guys use it as well but it fits all the requirements for our transmission.

[epik1]

Quakerstate Synchromesh, works and feels good in my KA tranny.
75-140 for my diff.

[aznfab213]

I switched from Mobil 1 75-90 to amsoil 75-90 today. I love the change. Shifts are smooth as butter.

[S14DB]

Originally Posted by epik1

Quakerstate Synchromesh, works and feels good in my KA tranny.

Feels good till you have you replace the transmission after running an oil that is way to thin.

Originally Posted by S14DB

You mean 3quarts? Kiss your transmission goodbye. It's 5W-30 not the 75w-90 we require.

AMSOIL - Synthetic Manual Synchromesh Transmission Fluid (MTF)

AMSOIL - Synthetic Manual Transmission and Transaxle Gear Lube 75W-90 (MTG)

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[slider2828]

Man Royal Purple, as you probably know is the worst shit on earth.... Couple of people had to rebuild tranny's after using royal purple.

Just wait like 30 secs and then start driving.... Redline is pretty terrible at cold temp...but warmed up its not too bad... But by far Amsoil is the best.... Haven't tried motul, but that is equally as hard to get... might as well support a US company. Motul is french...

[MadScientist]

Found some good stuff on Amsoil...



Mobil 1 Extended Performance vs. AMSOIL

Independent ASTM Certified Laboratory Testing of the new Mobil 1 Extended Performance vs. AMSOIL (and nine other major brand name motor oils) has been completed. AMSOIL is the clear winner.

Mobil 1 EP Evaporates 38% Faster Than AMSOIL, Mobil 1 EP Allows 18% More
Cold Start Friction and Mobil 1 EP Allows 22% MORE Wear

In addition, on the TFOUT test, the "Thin Film Oxygen Uptake Test" (ASTM D-
4742), which provides a very good correlation to the drain interval
capability of an oil, AMSOIL passed the 500 minute cut-off mark with flying
colors and still going strong, while Mobil 1 Extended Performance fell
short at only 469 minutes. Once again, we say that Mobil 1 is a good
quality product, however it does not compare to AMSOIL and the test data
clearly shows this.

AMSOIL vs Royal Purple

ASTM testing of Royal Purple involved their 20W50 Racing oil versus our AMSOIL Premium Protection Motor Oil 20W50 ARO. The test included 4 ball wear tests with different parameters, a spectrographic baseline, FTIR scan and volatility tests. The Royal Purple showed a significantly high volatility rate with a11.2% boil off rate. This compares to the AMSOIL ARO with only a 6.5% volatility rating. Wear scars were also smaller with the ARO. For example the AMSOIL ARO left a .40mm scar and the Royal Purple oil left a 1.3mm scar. The lower the scar damage number the better the wear scar protection! There was also a surprising difference in the viscosity index. The Royal Purple has a VI of 129 versus 172 for the ARO. The higher the VI, the better the viscosity stays in place at high temperatures

AMSOIL vs RedLine

Recently Red Line Synthetic Oil Corporation mailed an article to AMSOIL Dealers outlining results of testing done on AMSOIL Series 2000 Synthetic 20W-50 Racing Oil and Red Line products. AMSOIL finds the article flawed in both its marketing approach and scientific methodology.
Initial Red Line testing of an unused sample of AMSOIL Series 2000 20W-50 Racing Oil in the ASTM D4172 Four Ball Wear Test yielded results consistent with those appearing on the Series 2000 label. That is, AMSOIL Series 2000 20W-50 provided nearly three times better wear protection than Red Line 20W-50.

The article, however, goes on to report results of used oil testing using the ASTM D4172 Test. ASTM tests, as any informed entity in the lubricants industry knows, are designed for use with new (unused) lubricants, not used oil.

There are two problems with testing used oil. First, the conditions of testing are uncontrollable. While Red Line states the service conditions under which the samples operated were the same, variables including fuel and glycol dilution, contaminant levels, filtration, driving conditions sampling techniques and many more are virtually impossible to control.

The second problem is repeatability. AMSOIL attempted to replicate Red Line's findings by testing samples of used oil. The results were inconsistent with Red Line's and failed to meet the repeatability requirements of the ASTM D4172 test method. This failure is the result of testing an oil along with its contaminants.

Red Line's claim that their oil is designed to become more effective as it reacts with blowby gases is absurd. Clearly, if blowby gases improved the anti-wear characteristics of lubricants, then lubricant manufacturers would expose their products to such gases during the manufacturing process. The fact is, lubricant performance should not depend on the uncontrollable reactions of blowby gases with the oil.

Is AMSOIL Series 2000 Synthetic 20W-50 Racing Oil better than Red Line ? Yes .

[0wn3r]

Originally Posted by MadScientist

Found some good stuff on Amsoil...

That's pretty good but looks like it applies to engine oil, not transmission oil. (But hopefully similar quality applies.)

[slider2828]

Personally I love redline engine oil, just not so much tranny oil..... but wouldn't push it past 2500 miles... not really based on science, but that is why it starts becoming a really dark looking used oil in my observations....

[Danb]

Originally Posted by epik1

Quakerstate Synchromesh, works and feels good in my KA tranny.
75-140 for my diff.

I had a 3rd gear synchro going bad in a tranny couple years ago, i did a mix of 1.5qts of synchromesh and then 1qt of the thickest gear oil i could find and it worked great to my suprise, the 3rd gear grind vanished pretty much. I used the synchromesh on a civic trans before that and it worked out perfect. I had bad synchro's in 1st and 2nd and i beat on those gears for a solid year after that and never had any issues. Yea its a thin oil but the results have been in my favor completely.

[IBoughtAS13]

How many times does someone have to post it, Redline MT-90.

Open your Nissan manual and read

Then research Redline.

It's fits ALL requirements.

[dreaMervaj]

I'm glad I came across this thread.

I'm running MT-90 at the moment since everyone seems to love it but I'm not enjoying it much. I don't enjoy it simply because on cold mornings my transmission feels like shit. I have to wait at least a good 2-5 mins. or so for it to feel like butter.

I'm thinking about switching over to Amsoil soon since everyone says it's good on cold starts.

[Hoffman5982]

Originally Posted by S14DB

Feels good till you have you replace the transmission after running an oil that is way to thin.

I've been running synchromesh for 3 years, no problems. I understand you are either a paid advertiser or just love Amsoil, and I know Amsoil is good shit, but chill

[kevmeistah21]

MT-90 works wonders for my SR transmission! Cold starts don't affect anything but I'm located in SoCal and it doesn't get too cold over here.


Sent from my iPhone using Tapatalk

[S14DB]

Originally Posted by Hoffman5982

I've been running synchromesh for 3 years, no problems. I understand you are either a paid advertiser or just love Amsoil, and I know Amsoil is good shit, but chill

I don't shill for anybody. I just prefer amsoil for gear oil. They make a synchromesh oil so my preferred brand has nothing to do with you running the wrong oil weight.
AMSOIL - Synthetic Manual Synchromesh Transmission Fluid (MTF)

I don't support is running an oil that is not even close to the right weight. If you think running a 5W-30 in something designed for a 75w-90 won't increase wear then I don't expect you to post when you have problems down the road.

[KiLLeR2001]

I'm using AMSOIL products for my transmission and VLSD. I used Redline MT-90 before and its great after it warms up, not so much when cold.

[Hoffman5982]

Originally Posted by S14DB

I don't shill for anybody. I just prefer amsoil for gear oil. They make a synchromesh oil so my preferred brand has nothing to do with you running the wrong oil weight.
AMSOIL - Synthetic Manual Synchromesh Transmission Fluid (MTF)

I don't support is running an oil that is not even close to the right weight. If you think running a 5W-30 in something designed for a 75w-90 won't increase wear then I don't expect you to post when you have problems down the road.

As I've already said, I've been running it for 3 years. I understand that you like the product, and it's good that you are letting people know how good it is, but you are crossing the point of becoming that nagging guy who gets on everyone's nerves

[KiLLeR2001]

Originally Posted by hoffman5982

as i've already said, i've been running it for 3 years. I understand that you like the product, and it's good that you are letting people know how good it is, but you are crossing the point of becoming that nagging guy who gets on everyone's nerves

06-07-2011

Originally Posted by hoffman5982

so for the past few months i've had nothing but problems with my car. Actually, since i did the swap in august i've had problems. In february i found out i had a cracked piston so i rebuilt the top and bottom end. Last month i got everything back together and reinstalled. Now, the car starts perfectly, but has a pretty bad misfire. Timing is fine, and i know the coil pack harness is fine. I personally think i need a new ws harness but before i order that i'd like to test a couple of other components first. Mainly the ecu, ignitor, and maf. So, if anyone in the area has a stock ecu and maf for a zenki s14 sr and would be willing to let me plug it in for a few minutes to see what the car does, that would be extremely helpful. Thanks in advance

[Hoffman5982]

Originally Posted by KiLLeR2001

06-07-2011

And I've had a 240sx since 2007?

I really don't know what you were trying to achieve there

[IBoughtAS13]

No oil lubricates well when cold. The better condition of the transmission, the better it will feel when cold.

[SuperBlackS14]

Sorry to revive this yet again, but I ordered some AMSOIL a few days ago.

I put Red Line MT-90 in when the Trans went in my car (supposedly at 205 miles on the trans), and drove it through winter. It was okay but I've had this annoying grind in going into 3rd.

So I pulled the Trans to swap the clutch on an unrelated issue, and noticed a lot of metal on my drain plug, so I'm having my transmission looked at in addition to the AMSOIL, I'll update when I have a better picture of what's going on.

Asked a fellow S-Chassis owner and figured he was full of shit when he said use GL-3 from Napa cuz they use phosphates which prevents the wear on the syncros from the Zinc additives which he said we're In GL-4 as well as the 5... Thoughts on that?

[S14DB]

Originally Posted by SuperBlackS14

Sorry to revive this yet again, but I ordered some AMSOIL a few days ago.

I put Red Line MT-90 in when the Trans went in my car (supposedly at 205 miles on the trans), and drove it through winter. It was okay but I've had this annoying grind in going into 3rd.

So I pulled the Trans to swap the clutch on an unrelated issue, and noticed a lot of metal on my drain plug, so I'm having my transmission looked at in addition to the AMSOIL, I'll update when I have a better picture of what's going on.

Asked a fellow S-Chassis owner and figured he was full of shit when he said use GL-3 from Napa cuz they use phosphates which prevents the wear on the syncros from the Zinc additives which he said we're In GL-4 as well as the 5... Thoughts on that?

GL-5 is not yellow metal safe. GL-4 is and is what is recommended for our transmissions. You can use ether in the differential(GL-5 is better but buying GL-4 in bulk may be cheaper/easier).
GL-3 is for trucks with bevel and straight cut gears you don't want to use it with hypoid(ring and pinion) gears.

[SuperBlackS14]

I figured and that's why I decided to try the AMSOIL in deference to what the local guy said.

But again, I can't tell if my clutch is screwed or not. Not enough experience. Also thanks for response S14DB.

[om3ga]

Motul 300V in the Engine Motul Gear 300 in the trans and diff.

[cmg]

Ive always used cheap gear oil. 95-140. When the transmission is cold you have to shift gentle to keep it from grinding. Once its warmed up it shifts good. At the track when Im drifting and the trans actually gets really hot it shifts extremely smooth. Never had an issues with a transmission that was oil related using this.

[nickauger]

Originally Posted by jiggs

Anybody tried vavoline full synthetic? Its the only trans, diff oil available in our area..

Don't use it ... I try it in 2 different trans and they make them rattle a lot.

[bladetech8]

Originally Posted by om3ga

Motul 300V in the Engine Motul Gear 300 in the trans and diff.

^ This

/thread

[jamg]

which AMSOIL transmission flud should I use?

So far, i know it's 75w-90 weight.

and GL-4

and that i'll need to buy 3 quarts, because the tranny uses 2.5

I'm thinking this one- AMSOIL Severe Gear® 75W-90

because it's for performances based vehicles.

but there's also this one- AMSOIL Manual Transmission & Transaxle Gear Lube 75W-90

which looks like regular type of tranny fluid.

which should i go with?

[om3ga]

I like Motul Gear 300 a lot, i ran Royal Purple forever but i think the Motul is definitely better.