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It makes an absolute mess of the internals.
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To make it worse, you must buy it in 1 gallon increments.īill Arizona Transaxle would probably be referring to Red Line "Shock Proof", which is Red Line's attempt to bring the Extreme Pressure rating of their oil up to that of a conventional oil by adding ridiculous amounts of sulpher. It is just really expensive, that and they was a toad prince's ransom to ship it. Really most of these trannys are know to fail 150K-200K no matter what you do, even if the finest virgin maiden oil is used from birth. Many people start putting Redline in their tranny after shifting gets hard, or the tranny is whining or they have high milage and want to squeek a bit more life out of it. He didn't say the oil was good or bad, just the tranny is a mess to clean up for rebuilds after redline. He finds excessive deposits in the case and they take forever to clean out. Since then, the owner at Arizona Transaxel, whom I asked recommendations for oil has panned redline. The synthetic will not fix worn parts though. I got a few more miles while I waited for funds to accumlate to buy a rebuilt tranny. The whining quietd a bit, the very tired 2nd gear syncro shifted better. It will shilft better and easier, especially when cold. The synthetic MT-90 is all good, it will make your tranny last longer due to better lubrication, and run cooler. Since then I bought a syncro and asked a different Vanagon mechanic about refreshing the tranny with redline, but he said that he couldn't recommend redline anymore because he's noticed that a many of those vans seem to need a rebuild not long after the change. At the time I thought, well, it was just time for this transmission to quit. Not long after that, maybe another 15K, I had to rebuild. 1990 multivan, mileage was about 120k at the the time. It has been about 20k since the rebuild and it is still perfect.Īt one time I had my stock tranny lube replaced with Redline at the recommendation of my mechanic. He did a rebuild on our 79 bay and put in Redline. You might ask Daryl at AA Transaxle who is the local guru: Since Redline is synthetic this might not apply. Whether or not it was necessary I don't know, but it kept things working great and it felt good to see that old discolored fluid pouring out. In the case of the bay is was about 50k and the vanagon maybe 70k. On both my bay and vanagon which had dino fluid, I changed when I noticed the shifting getting a little stiffer. Looking for experiences or actual tested information on life of this stuff. Bentley does not recommend any change of fluid at any mileage that I could find. Stuff could probably last forever I don't know. The transmission gear lube is an interesting fluid in that it is not exposed to any "crankcase ventilation" otherwise known as contaminate infusion. When would be a good time to change transmission lube Redline MT-90? 30,000, 60,00, 100,000, when the tranny blows up? Posted: Tue 9:43 pm Post subject: Redline MT-90 change Quick sort: Show newest posts on top | Show oldest posts on top