How-To change the Automatic Transmission Fluid 2005+ Gen 2, Drain + Fill.
Donít get bewildered here! After I had done thisÖ I realized just how easy it was. Itís basically the same as changing the oil.
6+ quarts of J-Matic Transmission Fluid (or other recommended fluid), Various sets of funnels (the dipstick filler hole is tiny!), a drain bucket, Sharpie Magic Marker, water pitcher with 1quart markings on it, 10mm socket, 19mm socket, Shop towels, a temp gun if you have it.
First off, youíre going to need to locate some Fluid. I used Amsoil Synthetic Universal Automatic Transmission Fluid. I had purchased 12 quarts in hopes to do a full flush. But I changed my mind and just opted for a simple drain and fill. So that left over some extra fluidÖ Lots! Which means Iíll have a stock pile for the next Drain+Fill. Nissan requires J-Matic, well I said screw that stuff. For the $2 CHEAPER a quart I could get the Amsoil, as per quote by my local Stealership. So I went for Amsoil. Total Transmission fluid capacity Via Frontier SM (pg. AT-332) @ 10 & 7/8ths quarts. This is why I bought 12!
Get the truck warmed up fully. SM says 176*F for the transmission. I got mine up to about 115*F @ the transmission pan, I really couldnít get it any hotterÖ
With it Idling in park, check that fluid! I always do this to make sure where itís at as for a reference for after itís already full to know where it should be on the dipstick. after checking the level and making note, you can shut the truck down.
Now go ahead and get setup to drain out the fluid. I grabbed up a 5gal. bucket from Loweís for like $5 and put 1 quart increment marks on it for reference as to how much fluid had drained out. Itís pretty important to know this so you donít over/under fill the transmission. To set these increments on the bucket just grab a Sharpie and a water pitcher, mine had a 2 quart capacity and various other markings on it. Just go a quart at a time making your marks as you fill it up. Be sure not to screw up LOL. I marked mine all the way up to 10 quarts since I didnít know how much was going to drain out. After youíre all setup go ahead and use a 19mm. socket to get the drain bolt loose. Mine was torqued to all hell, I had to use a cheater bar on it!
Get a beer and watch it trickle out. I let mine drip drain for about 20mins to expel all those old demons LOL.
Hard to see on the bucket, but I was able to drain out 4.5 quarts
Step 5. Re-install the drain bolt on the transmission pan and torque it down.
Time to fillíer up. I had a ghetto funnel setup due to the fact I didnít have a funnel small enough to fit in the dipstick tube. Itís also imperative that everything is clean so as not to contaminate the fluid w/ debris. Be SURE to replace the SAME amount of fluid you drained out. I drained out just shy of 4.5 quarts. So I filled it back up with 4.5 quarts.
Replace the dip stick (without bolting it down, youíll need to yank it out a few times).
Now you can start it up and let it idle to warm up that new fluid! I let mine idle for about 15mins before even bothering to check it.
After itís warm (checking the transmission pan w/ my laser thingy and making sure it was similar temp to what it was before I drained it) and up to temp go ahead and check the fluid level using the dipstick while letting it Idle in park. I only had to put in just a little to get it back to where it was on my reference mark before draining.
First reading off trans pan before draining:
Second Reading after draining, refilling, and letting it warm back up:
After the fluid is up to par on the dipstick, clean up and tighten down the dipstick w/ the 10mm and take it out for a spin (have someone else drive if you followed step 4!! Haha).
After the cruise (medium driving for my truck) I rechecked the fluid level just to be sure it was where it needed to be. Thatís it! Now you just have to pick up everything!
After I had finished filling it up and checking everything (before the cruise), I cycled it from Drive to reverse. I noticed that it shifts into gears a heck of a lot faster than it did prior. As I was backing out of the driveway too, I noticed it took less gas/pedal to move the truck than before. I could only imagine what a full flush would do.
Acceleration From 0-90mph:
It took off a bit quicker and the power came on faster. 0-90 was a charge there realllly quick. The truck felt, litterally, brand new again.
Random temperatures of various parts after letting it warm up Via Idling
, and after the Cruise
Radiator @ Filler Neck: 155*F
@ Upper Radiator Hose (center) 168*F, 170*F
Transmission Cooler 120*F
AirAid Intake Filter 90*F
Center of Intake Tube 95*F
Throttle Body 99*F
Upper Intake Manifold 112*F
Upper Intake Manifold Runner 117*F
WRP Intake Manifold Spacer 125*F
OBX-R Headers 407*F
Primary Catalytic Converter @ Flange 285*F
Secondary Catalytic Converter 202*F
Transmission Pan 121*F