Red Line MT90 Getting a Bad Rap? Conflicting Opinions

?Waldo? · Posted: Fri Nov 21, 2014 12:00 am Post subject:

I can't seem to find where AA Transaxle recommends MT90 even for break in. Got a link?

insyncro · Posted: Fri Nov 21, 2014 4:56 am Post subject:

Never underestimate the amount of hear say and misinformation that you can find on the internet, from "know it all" types who only cut and paste out of context.

All of the definitive statements being made here are very entertaining.

dobryan · Posted: Fri Nov 21, 2014 6:46 am Post subject:

?Waldo? · Posted: Fri Nov 21, 2014 7:15 am Post subject:

I have no doubt that they recommended MT90 in various ways in the past but SD seemed to think the discussion was about TODAY, even to the point of adding the snarky and condescending 'Understand?"...

syncrodoka · Posted: Fri Nov 21, 2014 7:52 am Post subject:

Their break in procedure isn't online. They sent a slip with instructions and i called to confirm that they is their current recommendations. If you want to argue with someone give them a call.
I could care less about arguing a point with you or someone that has many documented issues with trannys that tries to put opinions into facts.
Have fun.

dobryan · Posted: Fri Nov 21, 2014 7:57 am Post subject:

insyncro · Posted: Fri Nov 21, 2014 8:11 am Post subject:

?Waldo? · Posted: Fri Nov 21, 2014 9:12 am Post subject:

I didn't get a break-in slip when I had my trans rebuilt by AA. It must have been before they started that practice. They do have their warranty online and it says absolutely nothing about MT90 for break-in or for long-term use. At least, not TODAY.

As far as anyone's particular brand of irritating (obnoxious, condescending, arrogant, argumentative, entitled, braggadocio, snarky, belittling, insulting, etc, etc...) comment being better than anyone else's, I'll quote Fat Ba$tard, "Oooo, everyone likes their own brand, don't they? This is magic."

Jon_slider · Posted: Fri Nov 21, 2014 10:19 am Post subject:

flomulgator · Posted: Fri Nov 21, 2014 10:33 am Post subject:

I can't believe no one's noticed this:

"A little nudeness.... can..... add drama to an otherwise dull day." Laughing

I completely agree Jon!
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Jon_slider · Posted: Fri Nov 21, 2014 10:50 am Post subject:

insyncro · Posted: Fri Nov 21, 2014 11:29 am Post subject:

So if you are nude and used Redline MT90 in your $yncro transmission, all will be OK?

I could see cold shifting being easier due to shrinkage, not the fluid.

wcdennis · Posted: Fri Nov 21, 2014 8:02 pm Post subject:

I just realized that oil is a bit like religion. A lot of faith is required when you choose a brand of lubricant because those moving parts are hidden from view, you have to trust the oil will be their savior. Naturally, once you put your faith in a brand you become passionate about it and dismissive of others.

I would submit that most of the good/bad qualities about oil expressed here are based mainly on faith. Unless you run two exact transmissions under exactly the same conditions, each with two brands of oil, you can't say that one is better than the other, and more importantly, how much better. I understand there is good solid research that goes into oil science, but I haven't seen very much of that quoted here. I will say that Gears seems to know what he is talking about, but can he even say that using oil A will result in X% more wear over using oil B? From reading this thread, I'm convinced that Redline may not be the ideal oil for a Vanagon Transmission, but is it really going to be the cause of an early failure? If so, can anyone say with certainty, how much early? What I'm saying is that this whole discussion, may be splitting hairs--but I'm probably wrong.

gears · Posted: Fri Nov 21, 2014 8:19 pm Post subject:

In my business (well .. I'm retired, but my old business) gears lasted 30 hours on average. We got to see first hand which oils (and oil types) allowed gears to last 40 hours vs 15-20 hours. Most of our races averaged 4-5 hours, but for a 24-hour race, oil choice was pretty darn important .. especially on gears that had already been run in qualifying or in a previous event.

Most street car guys change their oil and to them, if shifts seem smoother, they figure "this is better oil !" .. but I look at oil performance in a different way. When the transaxle is disassembled, the parts are either in good shape, or they require replacement. Synchronizers are cheap. Bearings are cheap. R&Ps are not.
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9.36 @ 146 in '86 Hot & Sticky
'90 Syncro Westy SVX
'87 Syncro GL 2.5
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ThankYouJerry · Posted: Fri Nov 21, 2014 8:40 pm Post subject:

4x4BNB · Posted: Wed Dec 03, 2014 11:46 am Post subject:

Swepco 210 with free shipping at $70 a bottle ....

http://www.ogracing.com/swepco-210-gear-lubricant-80w140

dobryan · Posted: Wed Dec 03, 2014 11:50 am Post subject:

?Waldo? · Posted: Wed Dec 03, 2014 12:03 pm Post subject:

Free shipping is only over $100. Better get two bottles...

mtwesty84 · Samba Member Joined: May 21, 2008 Posts: 16

Prior to Daryl at AA passing away I spoke to him at length on this for my 2WD van. If you are under 165 HP any 75W90 tranny fluid will do. He said that Redline changed their formula and he would not use it anymore. Just his opinion and Just my .02

Jon_slider · Posted: Wed Dec 03, 2014 12:18 pm Post subject:

here is the lowest price Swepco Ive found, its 201, which imo is sufficient, 210 is not needed..
http://www.rrproducts.com/p-759524-swepco-201-gear-lube-iso-460-1-gal.aspx

and here is another source Ive used
http://www.paragon-products.com/SearchResults.asp?Search=swepco&Search.x=0&Search.y=0

lots of discussion of the various Swepcos in this thread.. read posts by gears, hes the expert
http://www.thesamba.com/vw/forum/viewtopic.php?t=546909&start=0

Regarding fill volumes, a Syncro Tranny holds 4.2 quarts, the front diff holds 1.6 quarts

So a 1 gallon bottle of Swepco is probably sufficient for a refill, since trannies dont usually drain completely dry. But if you plan to do the front diff, 2 gallons will be the minimum purchase, afaik Swepco does not come in smaller than 1 gallon units.
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My Soapboxes: Inflation; Handling; Gearing; Decoupling; Swepco


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Red Line MT90 Getting a Bad Rap? Conflicting Opinions
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