So, with help from this forum, I've ordered REDLINE MT90. It actually claims to be GL1-GL2-G元 and formulated for synchronized transmissions.īUT it's a super light 30w oil and probably not up to the workings of a truck transmission.
Most standard transmissions are synchronized.ĭoes anyone sell a straight cut geared, non synchronized transmission? It's too slick.Ī lot of oil out there says "GL4-GL5 Compatible" but then goes on to say that it is NOT to be used in synchronized transmissions! And doesn't have a good drag coefficiency. It accelerates wear by over 60% in some cases. GL5 oil/lube has additives that damage brass or bronze synchro rings. Valvoline High Performance Gear Oil 75W90 GL-5: 15.I've scoured through Amazon, Ebay and all of my local parts stores and there is almost a complete absence of GL4 rated transmission oil.
#Redline mt90 manual#
*Redline MT-90 75W90 Manual Tranny Gear Lube GL-4: 15.6, 90 (Pour Point -45☌) Popular in Nissan, Toyota, and Mazda manual transmissions and transaxles, as well as other selected applications, this is a 75W90 GL-4 gear oil thats slightly heavier than MTL. *ENEOS (Nippon) Premium Multi Gear 75W90 GL-5: 14.7, 79.9 (Pour Point -42☌) Red Line MT-90 transmission gear oil is designed to provide excellent protection and improved shiftability for manual transmissions and transaxles. Amsoil's excellent MTG which I use, then Redline MT-90 are close behind. Planned price is 14 + shipping I will have 6 available for sale. /rebates/2fip2fRedline-MT-90-75W90-GL-4-Gear-Oil-1-Gallon2f180083180&. Motul's Gear 300 75W90 GL-5 (ester based) has the highest viscosity index (222), and the lowest viscosity at 40☌ (104☏). I stumbled up an opportunity to sell a small batch of Redline MT90 for a reduced price. Was your Sta-Lube 75W90 a synthetic? Even so, such heavy-duty differential gear lubes have a higher viscosity than specifically formulated manual transmission and transaxle gear lube. Motul's Gear 300 75W90 GL-5 (ester based) has the highest viscosity index (222), and the lowest viscosity at 40C (104F). I wonder if this can eliminate the output shaft bearing failures. For 30 bucks(including fluid transfer pump since I no longer have a lift) you can't go wrong. I will keep on checking to see if the other issues return but I am confident the issue is gone. I figured I wasn't going fast enough so I cranked it up to 80mph and it is completely gone. And I got on the highway and my howl has disappeared. Especially in 1st and 3rd gear where it was worst. Acura Integra Type-R - Red Line MT-90 Tranny Fluid (did search) - Anyone have experiences with this oil I have a few new bottles here that I want to put in.
On first drive I instantly notice the transmission shifts like butter. I refilled with 2 qts of RedLine MT90 (13.49 at Amazon) and went to go do some side work. I drained out the 20k Sta lube and it looked like crap(the last drain and fill yielded nice looking fluid but same howl and engagement issues. Basically it felt kind of grindey and had the howl. After the fluid change i notice my tranny is. The truck has 92k miles and is in good shape. I don't know what the truck had in it before, but it didn't look bad. I just swapped out the transfer case and tranny to redline mt90 with the correct amounts in both. I did a manual trans drain and fill around 20k ago using Stalube GL4/GL5 75W90 because I had some lying around.Ī few things I always noticed were a faint howl from the transmission whenever at cruising speed(I figured normal), rough shifting to 3rd gear, and rough engagements when the trans fluid was cold. Hey guys, i have a 97 Toyota Tacoma with the 2.7 and w59 5spd tranny. So my 05 CE 5 Speed has around 103k of well maintained miles on it.
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