Hi everyone. It's time to change the front and rear axle oil. I'd appreciate any advice on which oil to use for which axle. The internet offers varying specifications—75W for the RDU and 75W-85 for the PTU. I'm completely lost as to which to use, as other sources suggest 75W-140. My car is a 2023 Edge with AWD and a 2.0 EcoBoost engine. If you have any documentation for my car, including the oil specifications, I'd be grateful.

Introduction post.  Just saying hi. Just got new to me '14 Edge SEL 3.5 AWD. Sync 2 v3.10   Has 180k on it now but was fleet vehicle 90%of it's previous life with all maintenance done.  Just got forscan and enabled remote start and tried the navigation hack... Success with the remote start .. jury still out on the nav.

Thanks man. I have a 2019 Titanium 2.0. Do you need to physically take the vehicle somewhere for tuning? 

Good callout on the stop/start accumulator. The solenoid on mine wasn't loose, but the seals on the solenoid pooped the bed and puked fluid in my driveway. Easy to replace yourself. 

For a squishy ride try 235/70-17s or 245/65-17s depending on wheel width. A wider tire on a narrower rim will give a softer ride than a narrow tire on a wide rim within reason!   But, according to the chart below, the wheels are only 7.5 inches wide or unfit for your needs.   https://www.wheel-size.com/size/ford/mustang/2018/   The best you might do is 18 inch wheels.   https://www.wheel-size.com/size/ford/edge/2018/#generation-ii-facelift-2018-2024   Check local wrecking yards too.    

You can do the tranny at the same time! Pop 2 plugs, drain, add the fluid (Ford has built-in a handy funnel holder), drink your favorite waiting beverage for the fluid to reach 180 F about 10 minutes and install the site plug!

I've already checked the wheel offset/backspacing, lug spacing, and rim widths between the Edge and Mustang wheels - compatible.   The rotor diameters are the same, but the calipers are different, which may be the real issue rather than the rotor diameter.  As a side note, the SE version of the 2012 Edge came with 17" wheels.  This limited version was stock with 18", but by the window sticker for the vehicle, it had the optional 20".   The tires are Cooper Evolution 245/50-R20, and I've tried running them at 36 psi and down to 30 psi, but it doesn't make much difference, so I'm considering switching to wheels to install tires with a taller profile.  The vehicle will lose a little steering and cornering feel, but this doesn't get pushed by my wife as I would do.   If I didn't have to drive 90 minutes to see how they fit, I would have already tried fitting them.  This is why I'm asking.  I'm skeptical how anything in the 50 profile is going to soften up as much as a 65 profile.  But if someone has found one, I'd love to hear about it.

I feel pretty confident doing my first PTU and RDU service. I'll probably take it to my dealer for the transmission service.  More so, just concerned that they actually do it. And do it right!   Being on this Forum gives me so much valuable information. Including a lot more confidence in doing some of my own maintenance. Thanks to everyone!  

This is a whole lot easier than changing fluid on a C4. Then bumping the engine over to  find the drain plug and draining the Torque Converter. Not to mention somewhere between 10 to 13 Quarts. Did I forget the refill procedure? To lazy to type it out!  These things are easy to DIY just HOT!

So you have to go to the dealer for service