How Do You Check The Trans Fluid In The 2015, 8-Speed Automatic? - Page 2 - Jeep Garage - Jeep Forum

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  #13  
Old 05-10-2015, 07:41 PM
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Re: How Do You Check The Trans Fluid In The 2015, 8-Speed Automatic?

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Originally Posted by tomk View Post
Since you asked....





To properly check and fill the transmission, perform the following procedure:

WARNING: There is a risk of accident from vehicle moving when the engine is running. Secure vehicle to prevent it from moving. There is a risk of injury from contusions and burns if you insert your hands into the engine when it is running. Do not touch hot or rotating parts. Wear properly fitted work clothes.

CAUTION: A unique transmission fluid has been developed for the 8HP transmission. This fluid is NOT compatible with ATF+4 or any other current Chrysler transmission fluid. For specifics about this unique fluid see FLUIDS, LUBRICANTS AND GENUINE PARTS .


NOTE: Oil dye is not required to find leaks in the 8HP transmission. The oil dye can cause shift quality issues and is not recommended. The 8HP fluid has illuminance that is visible under a black light.
  1. Raise and support the vehicle on a level hoist (Refer to 04 - Vehicle Quick Reference/Hoisting - Standard Procedure) .
  2. Start the engine. The engine must continue to run for the entire test.
  3. AWD vehicles only: If necessary, remove the front propeller shaft (Refer to 03 - Differential and Driveline/Propeller Shaft/Removal).
  4. AWD vehicles only: Using a scan tool, enable Emissions Rolls Test Mode in the PCM.
  5. Using a scan tool or the vehicle information center, verify that the transmission fluid temperature is below 30C (86F).
  6. Disable traction control (ESC).
  7. Remove the fill plug from the right rear of the transmission case.
  8. Add transmission fluid until it trickles from the fill opening.
  9. Install the fill plug.
  10. Lower the vehicle for access to inside of the vehicle, leaving the tires at least 8 inches off the ground.
  11. With the brakes applied, place the transmission in Reverse and hold for 5 seconds.
  12. Place the transmission in Drive and hold for 5 seconds.
  13. Release the brakes, slowly accelerate to 2nd gear and hold for 5 seconds.
  14. Apply the brakes and place the transmission in Neutral.
  15. Raise the engine speed to 2000 RPM for 5 seconds.
  16. Return the engine to idle and place the transmission in Park.

    NOTE: A full transmission will have fluid at the fill hole with the transmission between 30C (86F) and 50C (122F). Do not over fill.
  17. Remove the fill plug and allow excess fluid to drain from fill hole or add fluid as necessary.
  18. Install the fill plug.
  19. AWD vehicles only: If removed, install the front propeller shaft (Refer to 03 - Differential and Driveline/Propeller Shaft/Installation).
  20. AWD vehicles only: Using a scan tool, disable Emissions Rolls Test Mode in the PCM.
  21. Using a scan tool, clear any DTCs.

Whew! I was afraid this was going to be complicated. I should be able to handle that while wearing dress clothes. Who needs a dipstick when you can perform such a simple procedure?


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  #14  
Old 05-11-2015, 06:15 AM
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Re: How Do You Check The Trans Fluid In The 2015, 8-Speed Automatic?

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Originally Posted by billt View Post
Does this thing have a drain plug for the transmission? I haven't crawled under it yet. To be honest, I'm afraid of what I'll find.

Yes on the bottom of the pan, uses alan key.
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Old 05-11-2015, 06:47 AM
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Re: How Do You Check The Trans Fluid In The 2015, 8-Speed Automatic?

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  #16  
Old 05-11-2015, 10:19 AM
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Re: How Do You Check The Trans Fluid In The 2015, 8-Speed Automatic?

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Originally Posted by Turbozcs2003 View Post
Yes on the bottom of the pan, uses alan key.
So..... It has both a drain plug, and a fill plug. I'm not seeing a problem with changing out the fluid. Now, the filter is another issue. But other than the cost of the fluid, it might be a good idea to do a drain and fill after 30,000 miles or so, just to be on the safe side.

If it's a "Lifetime Fill", the filter would seem to be manufactured for long duration. But fluid is fluid. It's going to go sour like any after thousands of heating and cooling cycles, and heavy useage. As far as the amount, you could simply measure what drains out, and put the exact same amount back in. Or until it runs out of the fill port.

As far as the cost of the fluid, if there is a market for this stuff, and I'm sure there will be with the amount of these 8-Speeds that are on the road, (Jeep Grand Cherokee, Ram Pickups, Durango's, Charger's and Challengers all use them), the cost per quart is bound to drop as other manufacturers of this stuff come on line.
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Old 05-11-2015, 10:36 AM
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Re: How Do You Check The Trans Fluid In The 2015, 8-Speed Automatic?

Bill

I think the fluid is probably a very good synthetic and I assume the filter which is incorporated into the pan is probably a good one too.

My own opinion on fluids is to change them early in life to get rid of the wear metals from break in.

I dumped the FF in both diffs at 100 miles and the FF engine oil. All the fluids were full of pearlescent and sparkle, just like the oil I drain from my Ariens snowblower after an hours use. I did the t-case at 200 miles and same deal.

I will wait a bit on the transmission just to see if someone on one of the forums does a pan drop to see what I would be getting into and also I want to find a source of cheaper
Mopar or ZF fluid.

Here is a link
ZF Parts | Transmission oils
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  #18  
Old 05-11-2015, 10:40 AM
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Re: How Do You Check The Trans Fluid In The 2015, 8-Speed Automatic?

I haven't taken apart an 8R70 however if its like any other automatic the filter isn't that critical to replace, its a pickup screen more so. Its said if a transmission pickup filtered like an oil filter it would be plugged within minutes. Every time the engine is shut off, the fluid runs back through the pickup into the pan, effectively back flushing the pickup filter, any large debris ends up in the pan. I'd say if the pickup filter is $400, at least replacing the fluid every 60mo/60k is a good step at maintaining the "fill for life" transmission.
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  #19  
Old 05-11-2015, 04:18 PM
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Re: How Do You Check The Trans Fluid In The 2015, 8-Speed Automatic?

moparecodiesel has a ZF transmission fluid/filter change video on U-tube
he has the RAM 1500 Ecodiesel, same 8 speed as in WK2
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  #20  
Old 05-11-2015, 06:56 PM
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Re: How Do You Check The Trans Fluid In The 2015, 8-Speed Automatic?

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Originally Posted by KONE-DAWG View Post
moparecodiesel has a ZF transmission fluid/filter change video on U-tube
he has the RAM 1500 Ecodiesel, same 8 speed as in WK2
I skipped through the video, (it was just too long at 1 hour and 11 minutes). While helpful, I think this guy is making a BIG mistake using his own fluid formulation, (Amszoil trans fluid with a Lucas Oil additive).

I had a coworker who had his trans fluid changed on his late model Nissan Versa at Big-O Tires. And after about 3,000 miles his transmission was shot. Turns out Big-O put in the wrong transmission fluid, (theirs instead of the one and ONLY fluid made by Nissan it was supposed to take). He ended up having to get a lawyer to finally get them, (Big-O), to pay the $3,500.00 for a new trans, which they finally did.

Another thing was the guy in the video never drained the torque converter, which leaves about 1/3rd of the dirty fluid in the transmission. I almost think you would be better off draining and refilling a couple of times in a 30,000 mile period, and leave the old pan in place. It has several magnets that will trap and hold any metallic particles.

The pan itself looks cheap as hell, made of mostly all plastic, with metal inserts around the screw holes. He said he paid over $200.00 for it. I didn't care for the cracking sound it made when he was removing the drain plug. (It sounded like when you keep tightening a gas cap after it stops, and makes that ratcheting clicking noise). I'm guessing it's a preventative to keep the plug from coming out if it gets loose??? You really couldn't tell because of the crappy angle he had the video camera positioned.

ZF has really made this over complicated and way too expensive. It's an automobile transmission for God's sake. Not a gear reduction box on a turbine helicopter.


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Old 05-11-2015, 08:02 PM
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Quote:
Originally Posted by billt View Post

I skipped through the video, (it was just too long at 1 hour and 11 minutes). While helpful, I think this guy is making a BIG mistake using his own fluid formulation, (Amszoil trans fluid with a Lucas Oil additive).

I had a coworker who had his trans fluid changed on his late model Nissan Versa at Big-O Tires. And after about 3,000 miles his transmission was shot. Turns out Big-O put in the wrong transmission fluid, (theirs instead of the one and ONLY fluid made by Nissan it was supposed to take). He ended up having to get a lawyer to finally get them, (Big-O), to pay the $3,500.00 for a new trans, which they finally did.

Another thing was the guy in the video never drained the torque converter, which leaves about 1/3rd of the dirty fluid in the transmission. I almost think you would be better off draining and refilling a couple of times in a 30,000 mile period, and leave the old pan in place. It has several magnets that will trap and hold any metallic particles.

The pan itself looks cheap as hell, made of mostly all plastic, with metal inserts around the screw holes. He said he paid over $200.00 for it. I didn't care for the cracking sound it made when he was removing the drain plug. (It sounded like when you keep tightening a gas cap after it stops, and makes that ratcheting clicking noise). I'm guessing it's a preventative to keep the plug from coming out if it gets loose??? You really couldn't tell because of the crappy angle he had the video camera positioned.

ZF has really made this over complicated and way too expensive. It's an automobile transmission for God's sake. Not a gear reduction box on a turbine helicopter.

The guy was also a complete alarmist that pan and fluid were not that bad could it use changing maybe but it wasnt terrible. I have dropped dozens of pans and they alway have a little metal, magnets always need cleaned and fluid is always slightly discolored. There was not excesive metal and the fluid was not burnt. I have always regorously maintained trans on other cars but the thing about this trans is the cost for service is rediculous. Over 10 years if you do frequent changes think how much money you will spend at $43 a quart and $300 for a pan. Even if you skipped the pan and only did fluid its still stupid money at that price and thats if yo do it yourself. Throw in a couple hundered more a shot if the dealer does it for you. A new trans is 4k could be creaping up on that number in trans service pretty quick lol. Anyway that is why i think ill do it once at 90-100k miles and if blows up before that then they can cover their no service fill for life transmission under life time maxcare warranty. Gone are the days of a drain and fill of the trans in my driveway every 30k for $75.
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  #22  
Old 05-11-2015, 08:21 PM
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Re: How Do You Check The Trans Fluid In The 2015, 8-Speed Automatic?

I agree, using your own fluid concoction is a little too much
All I can do is hope the price of fluid and pan drop somewhat before I need it.
Usually do all work and mods myself but ZF has made it very difficult to maintain this tranny
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  #23  
Old 05-11-2015, 10:26 PM
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Re: How Do You Check The Trans Fluid In The 2015, 8-Speed Automatic?

One thing I noticed with this transmission. If you use the paddle shifters around town, you can save a lot of wear and tear on the brakes by downshifting. After taking an in depth look at this transmission, and all of the very high costs associated with it, I might have to reevaluate my thinking. Brake pads are a hell of a lot cheaper and easier to replace, than anything that has anything to do with this overpriced, over complicated gear box.
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  #24  
Old 05-12-2015, 08:11 AM
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Re: How Do You Check The Trans Fluid In The 2015, 8-Speed Automatic?

My guess is once there are enough of these things out there along with the new 9spd in all the other Chrysler stuff, the fluid price should drop unless ZF has sole rights on the fluid and can ream everyone.

Once the fluid price drops, a pan/filter and fluid change every 50K will probably keep the trans happy. Also someone will probably have an oil analysis done and then we will know how good the fluid is.

I have the maxcare so I will stick with the ZF fluid, but in all my other Chysler Autos I run Amsoil ATF or Redline, instead of the ATF+4 in my 545RFE, 46RE and 40TE. After you do the initial pan drop, clean magnet and change filter, you get very little wear on subsequent pan drops. I put bulkhead B&M fittings in the pans so I can simply do periodic drain and fills.
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