Yea for $75-100 I'd order a set to try. But not for $300.    When things are overpriced no one will buy it ($1500 downpipes, $12-1500 exhaust things like that). Crazy. 

I'm not normally a dealership guy, but I went there for the fluids. I almost fainted at the price of RDU oil, but it didn't take much.    Tips: the RDU is rubber mounted, you can pry it slightly to get acess to the fill plug. The PTU is pretty easy. Just a bit of automotive yoga to get to the fill plug.

The 17” wheels for the SE model of the 2012 Edge were the same 7.5” width.   https://www.wheel-size.com/size/ford/edge/2012/#trim-i-facelift-2011-2014-20-ecoboost--240-385   You linked to the next generation.

For the specific viscosity/weight of the oil in each part consult your owner's manual, then select a reputable brand such as AMSOIL, Redline, .......   Please add your Model & Year to your profile signature - Settings - Ford Edge Forum

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!