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Your cart is empty.D4 Automatic Transmission Fluid is a fully-synthetic product designed with superior low-temperature properties compared to a Dexron III fluid, and the improved shear-stability requirements which is part of the Mercon V specifications. D4 Automatic Transmission Fluid also provides a GL-4 level of gear protection, making it a superior product for transmissions and transaxles. The balanced frictional characteristics provides smooth and consistent shifts for extended drain intervals. The superior stability compared to petroleum Automatic Transmission Fluids allows high-temperature operation without varnishing valves and clutches which leads to transmission failure
Customer
Reviewed in Canada on February 7, 2022
Awesome ATF, run it in my Toyota A340E and A650E's
C
Reviewed in Canada on February 3, 2021
Good
Grumpy monkey
Reviewed in the United Kingdom on September 26, 2020
Matches 955 Cayenne transfer case fluid specs.
Customer
Reviewed in Canada on November 14, 2020
they shippped them loose in a box, but no damage and my car loves this for the rear diff, and happy it holds up.
Gus Fotopoulos
Reviewed in Canada on June 19, 2019
Good product. Used it in a 2003 corvette z06 6 speed t56 transmission with great success.
AirplanesRUs
Reviewed in Canada on December 5, 2019
Works well with my 1998 Toyota Corolla VE which requires Dexron II or III. This covers both since it is a Dexron IV Transmission Fluid. I notice my car so far is less jerky when shifting into reverse.
stephen kassinger
Reviewed in Canada on August 1, 2018
I read reviews elsewhere that this stuff smooths the shifts so I tried it. I recently acquired an old classic car with auto trans. It’s known to shift more abruptly than a modern car. After changing to this stuff, the shifts were noticeably smoother right away. Really works.
alexej sokolow
Reviewed in Germany on March 4, 2018
Ich bin begeistert was der getriebeöl redline d4 atf leistet. Die Schalt Vorgänge sind deutlich weicher und sanfter geworden demnächst werden ich komplette öl Wechsel vornehmen. Tolle Arbeit an die amerikanische öl Industrie
Memologist
Reviewed in the United States on December 19, 2018
It works great but I haven't noticed any difference in shifting quality over the Mobil 1 fluid. I got this primarily because the Mobil 1 fluid suffers from excessive shearing (it thins out with use too quickly), which isn't enough to cause any real issue but it might mean rougher shifting later down the road when other synthetic fluids would still be good.It did improve my shifting a bit, as did my two previous drain and fills, since there was still 2-3 quarts of the old, burnt fluid floating around in my transmission. Also, some people here said it came out dark when they drained it shortly after putting this in, make sure you flushed or did several drain and fills with fresh fluid (even if it's cheap fluid, any new fluid) before putting this in. Even if there's still just 20% of the old, black transmission fluid remaining, it can make the fluid come out very dark.It might improve shifting over products like MaxLife because those products are often made thinner to be compatible with Dexron VI transmissions. This can result in rougher shifting. Try regular Dex/Merc and you will probably not notice much difference between this fluid and the Dex/Merc. Of course this fluid will hold up a lot better with time but it won't magically make your transmission like new again.I'm not buying this again because it's way too expensive on Amazon (over $13 a quart after tax) to justify putting it in my older car, but it's a durable fluid that is actually made for Dexron III transmissions (unlike MaxLife and similar products) and I'm sure it will hold up well with time and withstand abuse.
Fergycool
Reviewed in the United Kingdom on February 17, 2017
Great for my Hurth gearboxes on my boat.
Sapper78
Reviewed in Canada on May 19, 2015
Replaced the "lifetime" manual transmission fluid in a 2008 BMW E90 with 90,000 Km....shifting is improved. This stuff is an acceptable replacement for BMW LT3 which is way overpriced...and certainly not lifetime.
Kindle Customer
Reviewed in Canada on April 20, 2015
The oil seems to work well, it seems to have stopped the vibration coming from the torque converter engaging. I took off one star because 3 of the bottles were leaking from not being capped properly and made it pretty messy inside the box. Each bottle was in a zip-lock bag, but they also leaked. The box has oil soaking through the cardboard. The oil is good, the packaging is bad.
Jeremy
Reviewed in the United States on January 15, 2014
Got Redline D4 for my 04 Honda Accord w Auto trans. Did some extensive reading about product on various forums and what not prior to deciding to give it a shot. I'm a big fan of Hondas, but if you're looking at this stuff for your Honda you already know all about the transmission issues. And you probably already know that most people tell you to only use z1 or the new dw1 fluid from Honda. I had a 2000 accord prior to this one, bought it used and did the trans drain and fill 3 times w dw1- 5k miles later I had trans issues. Maybe the fluid, maybe not. Car had 190k.My 04 has 130k and I just purchased it used. When I initially drove it I didn't notice anything with the transmission, but the more I drove it I started to notice a bit of a long shift from first to second, and a bit of gear searching from time to time in the city. I knew the fluid was a little dirty and my first step when I buy a used car is to change oil, trans fluid, diff fluids, power steering, etc. so that tells you a little about my maintenance habits w vehicles and my attention to detail. I only use Mobil 1 synthetics religiously but their ATF Fluid wasn't necessarily "recommended". So I decided to give this Redline a shot.I must say, I haven't driven many miles yet (500 or so) since the change, so time may change my mind. However, with how auto trans work you can usually tell almost instantly if you have a fluid that isn't compatible with your car. Slipping, weird shifting, etc.I am really pleased with the results of the Redline ATF though. I immediately notice little to no gear searching, and the 1-2 shift is much better. Overall the shifts are still smooth when I'm just taking my time, and very quick and precise if I'm giving a little more gas. Granted my fluid was ready for a change, but I think the Redline improved my cars shifting more than new Honda fluid would have. I've seen both results in different cars. I did a 4 x drain and fill using 12 qts of Redline to get as much old out as I could.My advice, forget Honda fluid and buy this Redline. It's a much better fluid. It's synthetic. It works great, and seems to be completely compatible with Honda's fragile transmissions. In my opinion it's the best precaution you can possibly take. I'm really pleased with the results. As I said before, time could change my opinion but I don't expect it to. Synthetic fluids run cooler, don't break down as easily or as quickly, last longer, etc. I plan to drain 3 quarts and fill at every 5k oil change. Overkill? Maybe. But if you own a Honda and are looking at Redline fluid you know why I'm taking the extra precaution.
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